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Finding the Fourth Proportional to 8,363.52, 12,557.92 and 6,646.08

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Solution

The fourth proportional to 8,363.52, 12,557.92 and 6,646.08 is: 9,979.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.52 : 12,557.92 = 6,646.08 : x
  2. Step 2: Convert to fraction form
    8,363.52/12,557.92 = 6,646.08/x
  3. Step 3: Cross multiply
    8,363.52x = 12,557.92 × 6,646.08
  4. Step 4: Simplify right side
    8,363.52x = 83,460,940.95
  5. Step 5: Solve for x
    x = 83,460,940.95/8,363.52
  6. Step 6: Final answer
    x = 9,979.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.