Home / 8,747.28-12,070.08-5,607.72

Finding the Fourth Proportional to 8,747.28, 12,070.08 and 5,607.72

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Solution

The fourth proportional to 8,747.28, 12,070.08 and 5,607.72 is: 7,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.28 : 12,070.08 = 5,607.72 : x
  2. Step 2: Convert to fraction form
    8,747.28/12,070.08 = 5,607.72/x
  3. Step 3: Cross multiply
    8,747.28x = 12,070.08 × 5,607.72
  4. Step 4: Simplify right side
    8,747.28x = 67,685,629.02
  5. Step 5: Solve for x
    x = 67,685,629.02/8,747.28
  6. Step 6: Final answer
    x = 7,737.91

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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.