Home / 16,290.38-22,480.74-9,216.65

Finding the Fourth Proportional to 16,290.38, 22,480.74 and 9,216.65

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Solution

The fourth proportional to 16,290.38, 22,480.74 and 9,216.65 is: 12,718.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.38 : 22,480.74 = 9,216.65 : x
  2. Step 2: Convert to fraction form
    16,290.38/22,480.74 = 9,216.65/x
  3. Step 3: Cross multiply
    16,290.38x = 22,480.74 × 9,216.65
  4. Step 4: Simplify right side
    16,290.38x = 207,196,999.92
  5. Step 5: Solve for x
    x = 207,196,999.92/16,290.38
  6. Step 6: Final answer
    x = 12,718.98

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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.