Home / 10,787.40-14,902.56-8,542.08

Finding the Fourth Proportional to 10,787.40, 14,902.56 and 8,542.08

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Solution

The fourth proportional to 10,787.40, 14,902.56 and 8,542.08 is: 11,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.40 : 14,902.56 = 8,542.08 : x
  2. Step 2: Convert to fraction form
    10,787.40/14,902.56 = 8,542.08/x
  3. Step 3: Cross multiply
    10,787.40x = 14,902.56 × 8,542.08
  4. Step 4: Simplify right side
    10,787.40x = 127,298,859.72
  5. Step 5: Solve for x
    x = 127,298,859.72/10,787.40
  6. Step 6: Final answer
    x = 11,800.70

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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.