Home / 16,290.86-22,480.14-9,217.74

Finding the Fourth Proportional to 16,290.86, 22,480.14 and 9,217.74

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Solution

The fourth proportional to 16,290.86, 22,480.14 and 9,217.74 is: 12,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.86 : 22,480.14 = 9,217.74 : x
  2. Step 2: Convert to fraction form
    16,290.86/22,480.14 = 9,217.74/x
  3. Step 3: Cross multiply
    16,290.86x = 22,480.14 × 9,217.74
  4. Step 4: Simplify right side
    16,290.86x = 207,216,085.68
  5. Step 5: Solve for x
    x = 207,216,085.68/16,290.86
  6. Step 6: Final answer
    x = 12,719.78

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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.