Home / 15,265.32-21,067.20-8,551.52

Finding the Fourth Proportional to 15,265.32, 21,067.20 and 8,551.52

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Solution

The fourth proportional to 15,265.32, 21,067.20 and 8,551.52 is: 11,801.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,265.32 : 21,067.20 = 8,551.52 : x
  2. Step 2: Convert to fraction form
    15,265.32/21,067.20 = 8,551.52/x
  3. Step 3: Cross multiply
    15,265.32x = 21,067.20 × 8,551.52
  4. Step 4: Simplify right side
    15,265.32x = 180,156,582.14
  5. Step 5: Solve for x
    x = 180,156,582.14/15,265.32
  6. Step 6: Final answer
    x = 11,801.69

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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.