Home / 8,715.92-12,028.14-4,737.28

Finding the Fourth Proportional to 8,715.92, 12,028.14 and 4,737.28

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Solution

The fourth proportional to 8,715.92, 12,028.14 and 4,737.28 is: 6,537.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.92 : 12,028.14 = 4,737.28 : x
  2. Step 2: Convert to fraction form
    8,715.92/12,028.14 = 4,737.28/x
  3. Step 3: Cross multiply
    8,715.92x = 12,028.14 × 4,737.28
  4. Step 4: Simplify right side
    8,715.92x = 56,980,697.13
  5. Step 5: Solve for x
    x = 56,980,697.13/8,715.92
  6. Step 6: Final answer
    x = 6,537.55

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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.