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Finding the Fourth Proportional to 11,239.13, 15,510 and 6,271.13

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Solution

The fourth proportional to 11,239.13, 15,510 and 6,271.13 is: 8,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.13 : 15,510 = 6,271.13 : x
  2. Step 2: Convert to fraction form
    11,239.13/15,510 = 6,271.13/x
  3. Step 3: Cross multiply
    11,239.13x = 15,510 × 6,271.13
  4. Step 4: Simplify right side
    11,239.13x = 97,265,148.75
  5. Step 5: Solve for x
    x = 97,265,148.75/11,239.13
  6. Step 6: Final answer
    x = 8,654.16

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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.