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Finding the Fourth Proportional to 10,001.64, 15,008.94 and 5,627.64

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Solution

The fourth proportional to 10,001.64, 15,008.94 and 5,627.64 is: 8,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.64 : 15,008.94 = 5,627.64 : x
  2. Step 2: Convert to fraction form
    10,001.64/15,008.94 = 5,627.64/x
  3. Step 3: Cross multiply
    10,001.64x = 15,008.94 × 5,627.64
  4. Step 4: Simplify right side
    10,001.64x = 84,464,911.10
  5. Step 5: Solve for x
    x = 84,464,911.10/10,001.64
  6. Step 6: Final answer
    x = 8,445.11

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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.