Home / 14,712.28-20,302.88-7,997.89

Finding the Fourth Proportional to 14,712.28, 20,302.88 and 7,997.89

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Solution

The fourth proportional to 14,712.28, 20,302.88 and 7,997.89 is: 11,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,712.28 : 20,302.88 = 7,997.89 : x
  2. Step 2: Convert to fraction form
    14,712.28/20,302.88 = 7,997.89/x
  3. Step 3: Cross multiply
    14,712.28x = 20,302.88 × 7,997.89
  4. Step 4: Simplify right side
    14,712.28x = 162,380,170.74
  5. Step 5: Solve for x
    x = 162,380,170.74/14,712.28
  6. Step 6: Final answer
    x = 11,037.05

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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.