Home / 15,748.59-21,733-8,675

Finding the Fourth Proportional to 15,748.59, 21,733 and 8,675

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Solution

The fourth proportional to 15,748.59, 21,733 and 8,675 is: 11,971.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.59 : 21,733 = 8,675 : x
  2. Step 2: Convert to fraction form
    15,748.59/21,733 = 8,675/x
  3. Step 3: Cross multiply
    15,748.59x = 21,733 × 8,675
  4. Step 4: Simplify right side
    15,748.59x = 188,533,775
  5. Step 5: Solve for x
    x = 188,533,775/15,748.59
  6. Step 6: Final answer
    x = 11,971.47

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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.