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Finding the Fourth Proportional to 8,730, 13,077.18 and 7,264.44

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Solution

The fourth proportional to 8,730, 13,077.18 and 7,264.44 is: 10,881.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730 : 13,077.18 = 7,264.44 : x
  2. Step 2: Convert to fraction form
    8,730/13,077.18 = 7,264.44/x
  3. Step 3: Cross multiply
    8,730x = 13,077.18 × 7,264.44
  4. Step 4: Simplify right side
    8,730x = 94,998,389.48
  5. Step 5: Solve for x
    x = 94,998,389.48/8,730
  6. Step 6: Final answer
    x = 10,881.83

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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.