Home / 13,737.18-18,957.32-7,449.56

Finding the Fourth Proportional to 13,737.18, 18,957.32 and 7,449.56

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Solution

The fourth proportional to 13,737.18, 18,957.32 and 7,449.56 is: 10,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.18 : 18,957.32 = 7,449.56 : x
  2. Step 2: Convert to fraction form
    13,737.18/18,957.32 = 7,449.56/x
  3. Step 3: Cross multiply
    13,737.18x = 18,957.32 × 7,449.56
  4. Step 4: Simplify right side
    13,737.18x = 141,223,692.78
  5. Step 5: Solve for x
    x = 141,223,692.78/13,737.18
  6. Step 6: Final answer
    x = 10,280.40

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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.