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Finding the Fourth Proportional to 8,787.04, 12,125.64 and 4,807.36

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Solution

The fourth proportional to 8,787.04, 12,125.64 and 4,807.36 is: 6,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.04 : 12,125.64 = 4,807.36 : x
  2. Step 2: Convert to fraction form
    8,787.04/12,125.64 = 4,807.36/x
  3. Step 3: Cross multiply
    8,787.04x = 12,125.64 × 4,807.36
  4. Step 4: Simplify right side
    8,787.04x = 58,292,316.71
  5. Step 5: Solve for x
    x = 58,292,316.71/8,787.04
  6. Step 6: Final answer
    x = 6,633.90

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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.