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Finding the Fourth Proportional to 15,247.68, 22,871.52 and 8,318.40

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Solution

The fourth proportional to 15,247.68, 22,871.52 and 8,318.40 is: 12,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.68 : 22,871.52 = 8,318.40 : x
  2. Step 2: Convert to fraction form
    15,247.68/22,871.52 = 8,318.40/x
  3. Step 3: Cross multiply
    15,247.68x = 22,871.52 × 8,318.40
  4. Step 4: Simplify right side
    15,247.68x = 190,254,451.97
  5. Step 5: Solve for x
    x = 190,254,451.97/15,247.68
  6. Step 6: Final answer
    x = 12,477.60

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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.