Home / 15,748.68-21,734.18-8,675.11

Finding the Fourth Proportional to 15,748.68, 21,734.18 and 8,675.11

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Solution

The fourth proportional to 15,748.68, 21,734.18 and 8,675.11 is: 11,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.68 : 21,734.18 = 8,675.11 : x
  2. Step 2: Convert to fraction form
    15,748.68/21,734.18 = 8,675.11/x
  3. Step 3: Cross multiply
    15,748.68x = 21,734.18 × 8,675.11
  4. Step 4: Simplify right side
    15,748.68x = 188,546,402.26
  5. Step 5: Solve for x
    x = 188,546,402.26/15,748.68
  6. Step 6: Final answer
    x = 11,972.20

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1.5x scale

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.