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Finding the Fourth Proportional to 8,938.47, 13,407.71 and 4,559.00

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Solution

The fourth proportional to 8,938.47, 13,407.71 and 4,559.00 is: 6,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.47 : 13,407.71 = 4,559.00 : x
  2. Step 2: Convert to fraction form
    8,938.47/13,407.71 = 4,559.00/x
  3. Step 3: Cross multiply
    8,938.47x = 13,407.71 × 4,559.00
  4. Step 4: Simplify right side
    8,938.47x = 61,125,761.12
  5. Step 5: Solve for x
    x = 61,125,761.12/8,938.47
  6. Step 6: Final answer
    x = 6,838.51

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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.