Home / 8,787.57-12,126.56-5,248.68

Finding the Fourth Proportional to 8,787.57, 12,126.56 and 5,248.68

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Solution

The fourth proportional to 8,787.57, 12,126.56 and 5,248.68 is: 7,243.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.57 : 12,126.56 = 5,248.68 : x
  2. Step 2: Convert to fraction form
    8,787.57/12,126.56 = 5,248.68/x
  3. Step 3: Cross multiply
    8,787.57x = 12,126.56 × 5,248.68
  4. Step 4: Simplify right side
    8,787.57x = 63,648,406.70
  5. Step 5: Solve for x
    x = 63,648,406.70/8,787.57
  6. Step 6: Final answer
    x = 7,243.00

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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.