Home / 15,508.55-21,407.88-10,994.82

Finding the Fourth Proportional to 15,508.55, 21,407.88 and 10,994.82

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Solution

The fourth proportional to 15,508.55, 21,407.88 and 10,994.82 is: 15,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.55 : 21,407.88 = 10,994.82 : x
  2. Step 2: Convert to fraction form
    15,508.55/21,407.88 = 10,994.82/x
  3. Step 3: Cross multiply
    15,508.55x = 21,407.88 × 10,994.82
  4. Step 4: Simplify right side
    15,508.55x = 235,375,787.18
  5. Step 5: Solve for x
    x = 235,375,787.18/15,508.55
  6. Step 6: Final answer
    x = 15,177.16

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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.