Home / 8,715.52-12,025.92-4,937.90

Finding the Fourth Proportional to 8,715.52, 12,025.92 and 4,937.90

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Solution

The fourth proportional to 8,715.52, 12,025.92 and 4,937.90 is: 6,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.52 : 12,025.92 = 4,937.90 : x
  2. Step 2: Convert to fraction form
    8,715.52/12,025.92 = 4,937.90/x
  3. Step 3: Cross multiply
    8,715.52x = 12,025.92 × 4,937.90
  4. Step 4: Simplify right side
    8,715.52x = 59,382,816.40
  5. Step 5: Solve for x
    x = 59,382,816.40/8,715.52
  6. Step 6: Final answer
    x = 6,813.46

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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.