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Finding the Fourth Proportional to 8,513.59, 11,750.38 and 4,787.59

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Solution

The fourth proportional to 8,513.59, 11,750.38 and 4,787.59 is: 6,607.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.59 : 11,750.38 = 4,787.59 : x
  2. Step 2: Convert to fraction form
    8,513.59/11,750.38 = 4,787.59/x
  3. Step 3: Cross multiply
    8,513.59x = 11,750.38 × 4,787.59
  4. Step 4: Simplify right side
    8,513.59x = 56,256,001.78
  5. Step 5: Solve for x
    x = 56,256,001.78/8,513.59
  6. Step 6: Final answer
    x = 6,607.79

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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.