Home / 15,980.06-22,050.34-9,691.22

Finding the Fourth Proportional to 15,980.06, 22,050.34 and 9,691.22

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Solution

The fourth proportional to 15,980.06, 22,050.34 and 9,691.22 is: 13,372.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.06 : 22,050.34 = 9,691.22 : x
  2. Step 2: Convert to fraction form
    15,980.06/22,050.34 = 9,691.22/x
  3. Step 3: Cross multiply
    15,980.06x = 22,050.34 × 9,691.22
  4. Step 4: Simplify right side
    15,980.06x = 213,694,561.54
  5. Step 5: Solve for x
    x = 213,694,561.54/15,980.06
  6. Step 6: Final answer
    x = 13,372.58

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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.