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Finding the Fourth Proportional to 8,312.61, 11,468.87 and 4,727.30

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Solution

The fourth proportional to 8,312.61, 11,468.87 and 4,727.30 is: 6,522.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.61 : 11,468.87 = 4,727.30 : x
  2. Step 2: Convert to fraction form
    8,312.61/11,468.87 = 4,727.30/x
  3. Step 3: Cross multiply
    8,312.61x = 11,468.87 × 4,727.30
  4. Step 4: Simplify right side
    8,312.61x = 54,216,708.17
  5. Step 5: Solve for x
    x = 54,216,708.17/8,312.61
  6. Step 6: Final answer
    x = 6,522.22

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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.