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Finding the Fourth Proportional to 8,801.79, 12,142.40 and 5,073.63

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Solution

The fourth proportional to 8,801.79, 12,142.40 and 5,073.63 is: 6,999.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,801.79 : 12,142.40 = 5,073.63 : x
  2. Step 2: Convert to fraction form
    8,801.79/12,142.40 = 5,073.63/x
  3. Step 3: Cross multiply
    8,801.79x = 12,142.40 × 5,073.63
  4. Step 4: Simplify right side
    8,801.79x = 61,606,044.91
  5. Step 5: Solve for x
    x = 61,606,044.91/8,801.79
  6. Step 6: Final answer
    x = 6,999.26

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Half scale
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Double scale
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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.