Home / 13,569.80-18,724.14-7,601.72

Finding the Fourth Proportional to 13,569.80, 18,724.14 and 7,601.72

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Solution

The fourth proportional to 13,569.80, 18,724.14 and 7,601.72 is: 10,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.80 : 18,724.14 = 7,601.72 : x
  2. Step 2: Convert to fraction form
    13,569.80/18,724.14 = 7,601.72/x
  3. Step 3: Cross multiply
    13,569.80x = 18,724.14 × 7,601.72
  4. Step 4: Simplify right side
    13,569.80x = 142,335,575.90
  5. Step 5: Solve for x
    x = 142,335,575.90/13,569.80
  6. Step 6: Final answer
    x = 10,489.15

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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.