Home / 16,288.61-22,480.40-9,121.25

Finding the Fourth Proportional to 16,288.61, 22,480.40 and 9,121.25

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Solution

The fourth proportional to 16,288.61, 22,480.40 and 9,121.25 is: 12,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,288.61 : 22,480.40 = 9,121.25 : x
  2. Step 2: Convert to fraction form
    16,288.61/22,480.40 = 9,121.25/x
  3. Step 3: Cross multiply
    16,288.61x = 22,480.40 × 9,121.25
  4. Step 4: Simplify right side
    16,288.61x = 205,049,376.20
  5. Step 5: Solve for x
    x = 205,049,376.20/16,288.61
  6. Step 6: Final answer
    x = 12,588.51

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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.