Home / 15,347.56-21,179.84-9,377.97

Finding the Fourth Proportional to 15,347.56, 21,179.84 and 9,377.97

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Solution

The fourth proportional to 15,347.56, 21,179.84 and 9,377.97 is: 12,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.56 : 21,179.84 = 9,377.97 : x
  2. Step 2: Convert to fraction form
    15,347.56/21,179.84 = 9,377.97/x
  3. Step 3: Cross multiply
    15,347.56x = 21,179.84 × 9,377.97
  4. Step 4: Simplify right side
    15,347.56x = 198,623,904.12
  5. Step 5: Solve for x
    x = 198,623,904.12/15,347.56
  6. Step 6: Final answer
    x = 12,941.73

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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.