Home / 14,531.76-21,810.60-9,918

Finding the Fourth Proportional to 14,531.76, 21,810.60 and 9,918

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Solution

The fourth proportional to 14,531.76, 21,810.60 and 9,918 is: 14,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,531.76 : 21,810.60 = 9,918 : x
  2. Step 2: Convert to fraction form
    14,531.76/21,810.60 = 9,918/x
  3. Step 3: Cross multiply
    14,531.76x = 21,810.60 × 9,918
  4. Step 4: Simplify right side
    14,531.76x = 216,317,530.80
  5. Step 5: Solve for x
    x = 216,317,530.80/14,531.76
  6. Step 6: Final answer
    x = 14,885.85

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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.