Home / 15,990.06-22,066.41-9,279.69

Finding the Fourth Proportional to 15,990.06, 22,066.41 and 9,279.69

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Solution

The fourth proportional to 15,990.06, 22,066.41 and 9,279.69 is: 12,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.06 : 22,066.41 = 9,279.69 : x
  2. Step 2: Convert to fraction form
    15,990.06/22,066.41 = 9,279.69/x
  3. Step 3: Cross multiply
    15,990.06x = 22,066.41 × 9,279.69
  4. Step 4: Simplify right side
    15,990.06x = 204,769,444.21
  5. Step 5: Solve for x
    x = 204,769,444.21/15,990.06
  6. Step 6: Final answer
    x = 12,806.05

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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.