Home / 15,458.22-21,320.49-9,484.86

Finding the Fourth Proportional to 15,458.22, 21,320.49 and 9,484.86

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Solution

The fourth proportional to 15,458.22, 21,320.49 and 9,484.86 is: 13,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.22 : 21,320.49 = 9,484.86 : x
  2. Step 2: Convert to fraction form
    15,458.22/21,320.49 = 9,484.86/x
  3. Step 3: Cross multiply
    15,458.22x = 21,320.49 × 9,484.86
  4. Step 4: Simplify right side
    15,458.22x = 202,221,862.78
  5. Step 5: Solve for x
    x = 202,221,862.78/15,458.22
  6. Step 6: Final answer
    x = 13,081.83

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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.