Home / 12,531.60-17,281.70-7,495

Finding the Fourth Proportional to 12,531.60, 17,281.70 and 7,495

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Solution

The fourth proportional to 12,531.60, 17,281.70 and 7,495 is: 10,335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.60 : 17,281.70 = 7,495 : x
  2. Step 2: Convert to fraction form
    12,531.60/17,281.70 = 7,495/x
  3. Step 3: Cross multiply
    12,531.60x = 17,281.70 × 7,495
  4. Step 4: Simplify right side
    12,531.60x = 129,526,341.50
  5. Step 5: Solve for x
    x = 129,526,341.50/12,531.60
  6. Step 6: Final answer
    x = 10,335.98

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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.