Home / 13,737.17-18,957.30-7,449.54

Finding the Fourth Proportional to 13,737.17, 18,957.30 and 7,449.54

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Solution

The fourth proportional to 13,737.17, 18,957.30 and 7,449.54 is: 10,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.17 : 18,957.30 = 7,449.54 : x
  2. Step 2: Convert to fraction form
    13,737.17/18,957.30 = 7,449.54/x
  3. Step 3: Cross multiply
    13,737.17x = 18,957.30 × 7,449.54
  4. Step 4: Simplify right side
    13,737.17x = 141,223,164.64
  5. Step 5: Solve for x
    x = 141,223,164.64/13,737.17
  6. Step 6: Final answer
    x = 10,280.37

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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.