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Finding the Fourth Proportional to 10,001.88, 15,003 and 2,605.89

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Solution

The fourth proportional to 10,001.88, 15,003 and 2,605.89 is: 3,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.88 : 15,003 = 2,605.89 : x
  2. Step 2: Convert to fraction form
    10,001.88/15,003 = 2,605.89/x
  3. Step 3: Cross multiply
    10,001.88x = 15,003 × 2,605.89
  4. Step 4: Simplify right side
    10,001.88x = 39,096,167.67
  5. Step 5: Solve for x
    x = 39,096,167.67/10,001.88
  6. Step 6: Final answer
    x = 3,908.88

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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.