Home / 14,988.28-20,682.66-8,701.12

Finding the Fourth Proportional to 14,988.28, 20,682.66 and 8,701.12

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Solution

The fourth proportional to 14,988.28, 20,682.66 and 8,701.12 is: 12,006.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.28 : 20,682.66 = 8,701.12 : x
  2. Step 2: Convert to fraction form
    14,988.28/20,682.66 = 8,701.12/x
  3. Step 3: Cross multiply
    14,988.28x = 20,682.66 × 8,701.12
  4. Step 4: Simplify right side
    14,988.28x = 179,962,306.58
  5. Step 5: Solve for x
    x = 179,962,306.58/14,988.28
  6. Step 6: Final answer
    x = 12,006.87

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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.