Home / 15,067.08-20,802.33-9,691.92

Finding the Fourth Proportional to 15,067.08, 20,802.33 and 9,691.92

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Solution

The fourth proportional to 15,067.08, 20,802.33 and 9,691.92 is: 13,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.08 : 20,802.33 = 9,691.92 : x
  2. Step 2: Convert to fraction form
    15,067.08/20,802.33 = 9,691.92/x
  3. Step 3: Cross multiply
    15,067.08x = 20,802.33 × 9,691.92
  4. Step 4: Simplify right side
    15,067.08x = 201,614,518.17
  5. Step 5: Solve for x
    x = 201,614,518.17/15,067.08
  6. Step 6: Final answer
    x = 13,381.13

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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.