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Finding the Fourth Proportional to 15,001.20, 20,701.19 and 8,195.12

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Solution

The fourth proportional to 15,001.20, 20,701.19 and 8,195.12 is: 11,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.20 : 20,701.19 = 8,195.12 : x
  2. Step 2: Convert to fraction form
    15,001.20/20,701.19 = 8,195.12/x
  3. Step 3: Cross multiply
    15,001.20x = 20,701.19 × 8,195.12
  4. Step 4: Simplify right side
    15,001.20x = 169,648,653.17
  5. Step 5: Solve for x
    x = 169,648,653.17/15,001.20
  6. Step 6: Final answer
    x = 11,309.01

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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.