Home / 18,411.24-25,409.34-11,240.76

Finding the Fourth Proportional to 18,411.24, 25,409.34 and 11,240.76

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Solution

The fourth proportional to 18,411.24, 25,409.34 and 11,240.76 is: 15,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.24 : 25,409.34 = 11,240.76 : x
  2. Step 2: Convert to fraction form
    18,411.24/25,409.34 = 11,240.76/x
  3. Step 3: Cross multiply
    18,411.24x = 25,409.34 × 11,240.76
  4. Step 4: Simplify right side
    18,411.24x = 285,620,292.70
  5. Step 5: Solve for x
    x = 285,620,292.70/18,411.24
  6. Step 6: Final answer
    x = 15,513.37

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.