Home / 15,830.03-21,843.97-8,756.30

Finding the Fourth Proportional to 15,830.03, 21,843.97 and 8,756.30

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Solution

The fourth proportional to 15,830.03, 21,843.97 and 8,756.30 is: 12,082.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,830.03 : 21,843.97 = 8,756.30 : x
  2. Step 2: Convert to fraction form
    15,830.03/21,843.97 = 8,756.30/x
  3. Step 3: Cross multiply
    15,830.03x = 21,843.97 × 8,756.30
  4. Step 4: Simplify right side
    15,830.03x = 191,272,387.23
  5. Step 5: Solve for x
    x = 191,272,387.23/15,830.03
  6. Step 6: Final answer
    x = 12,082.88

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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.