Home / 13,737.09-18,957.19-7,449.47

Finding the Fourth Proportional to 13,737.09, 18,957.19 and 7,449.47

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Solution

The fourth proportional to 13,737.09, 18,957.19 and 7,449.47 is: 10,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.09 : 18,957.19 = 7,449.47 : x
  2. Step 2: Convert to fraction form
    13,737.09/18,957.19 = 7,449.47/x
  3. Step 3: Cross multiply
    13,737.09x = 18,957.19 × 7,449.47
  4. Step 4: Simplify right side
    13,737.09x = 141,220,989.84
  5. Step 5: Solve for x
    x = 141,220,989.84/13,737.09
  6. Step 6: Final answer
    x = 10,280.27

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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.