Home / 14,777.30-20,397.22-9,113.82

Finding the Fourth Proportional to 14,777.30, 20,397.22 and 9,113.82

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Solution

The fourth proportional to 14,777.30, 20,397.22 and 9,113.82 is: 12,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,777.30 : 20,397.22 = 9,113.82 : x
  2. Step 2: Convert to fraction form
    14,777.30/20,397.22 = 9,113.82/x
  3. Step 3: Cross multiply
    14,777.30x = 20,397.22 × 9,113.82
  4. Step 4: Simplify right side
    14,777.30x = 185,896,591.58
  5. Step 5: Solve for x
    x = 185,896,591.58/14,777.30
  6. Step 6: Final answer
    x = 12,579.88

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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.