Home / 13,737.80-20,600.22-7,162.76

Finding the Fourth Proportional to 13,737.80, 20,600.22 and 7,162.76

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Solution

The fourth proportional to 13,737.80, 20,600.22 and 7,162.76 is: 10,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.80 : 20,600.22 = 7,162.76 : x
  2. Step 2: Convert to fraction form
    13,737.80/20,600.22 = 7,162.76/x
  3. Step 3: Cross multiply
    13,737.80x = 20,600.22 × 7,162.76
  4. Step 4: Simplify right side
    13,737.80x = 147,554,431.81
  5. Step 5: Solve for x
    x = 147,554,431.81/13,737.80
  6. Step 6: Final answer
    x = 10,740.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.