Home / 18,113.52-25,011.60-11,409.96

Finding the Fourth Proportional to 18,113.52, 25,011.60 and 11,409.96

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Solution

The fourth proportional to 18,113.52, 25,011.60 and 11,409.96 is: 15,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.52 : 25,011.60 = 11,409.96 : x
  2. Step 2: Convert to fraction form
    18,113.52/25,011.60 = 11,409.96/x
  3. Step 3: Cross multiply
    18,113.52x = 25,011.60 × 11,409.96
  4. Step 4: Simplify right side
    18,113.52x = 285,381,355.54
  5. Step 5: Solve for x
    x = 285,381,355.54/18,113.52
  6. Step 6: Final answer
    x = 15,755.16

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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.