Home / 9,988.47-14,985.36-3,414.65

Finding the Fourth Proportional to 9,988.47, 14,985.36 and 3,414.65

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Solution

The fourth proportional to 9,988.47, 14,985.36 and 3,414.65 is: 5,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.47 : 14,985.36 = 3,414.65 : x
  2. Step 2: Convert to fraction form
    9,988.47/14,985.36 = 3,414.65/x
  3. Step 3: Cross multiply
    9,988.47x = 14,985.36 × 3,414.65
  4. Step 4: Simplify right side
    9,988.47x = 51,169,684.60
  5. Step 5: Solve for x
    x = 51,169,684.60/9,988.47
  6. Step 6: Final answer
    x = 5,122.88

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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.