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Finding the Fourth Proportional to 8,709.66, 12,024.81 and 6,468.90

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Solution

The fourth proportional to 8,709.66, 12,024.81 and 6,468.90 is: 8,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.66 : 12,024.81 = 6,468.90 : x
  2. Step 2: Convert to fraction form
    8,709.66/12,024.81 = 6,468.90/x
  3. Step 3: Cross multiply
    8,709.66x = 12,024.81 × 6,468.90
  4. Step 4: Simplify right side
    8,709.66x = 77,787,293.41
  5. Step 5: Solve for x
    x = 77,787,293.41/8,709.66
  6. Step 6: Final answer
    x = 8,931.15

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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.