Home / 15,748.83-21,733.38-8,675.28

Finding the Fourth Proportional to 15,748.83, 21,733.38 and 8,675.28

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Solution

The fourth proportional to 15,748.83, 21,733.38 and 8,675.28 is: 11,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.83 : 21,733.38 = 8,675.28 : x
  2. Step 2: Convert to fraction form
    15,748.83/21,733.38 = 8,675.28/x
  3. Step 3: Cross multiply
    15,748.83x = 21,733.38 × 8,675.28
  4. Step 4: Simplify right side
    15,748.83x = 188,543,156.85
  5. Step 5: Solve for x
    x = 188,543,156.85/15,748.83
  6. Step 6: Final answer
    x = 11,971.88

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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.