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Finding the Fourth Proportional to 14,787.08, 20,404.50 and 8,501.48

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Solution

The fourth proportional to 14,787.08, 20,404.50 and 8,501.48 is: 11,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.08 : 20,404.50 = 8,501.48 : x
  2. Step 2: Convert to fraction form
    14,787.08/20,404.50 = 8,501.48/x
  3. Step 3: Cross multiply
    14,787.08x = 20,404.50 × 8,501.48
  4. Step 4: Simplify right side
    14,787.08x = 173,468,448.66
  5. Step 5: Solve for x
    x = 173,468,448.66/14,787.08
  6. Step 6: Final answer
    x = 11,731.08

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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.