Home / 13,240.34-18,269.33-7,574.30

Finding the Fourth Proportional to 13,240.34, 18,269.33 and 7,574.30

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Solution

The fourth proportional to 13,240.34, 18,269.33 and 7,574.30 is: 10,451.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.34 : 18,269.33 = 7,574.30 : x
  2. Step 2: Convert to fraction form
    13,240.34/18,269.33 = 7,574.30/x
  3. Step 3: Cross multiply
    13,240.34x = 18,269.33 × 7,574.30
  4. Step 4: Simplify right side
    13,240.34x = 138,377,257.00
  5. Step 5: Solve for x
    x = 138,377,257.00/13,240.34
  6. Step 6: Final answer
    x = 10,451.19

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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.