Home / 14,691.28-20,274.21-8,317.71

Finding the Fourth Proportional to 14,691.28, 20,274.21 and 8,317.71

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Solution

The fourth proportional to 14,691.28, 20,274.21 and 8,317.71 is: 11,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,691.28 : 20,274.21 = 8,317.71 : x
  2. Step 2: Convert to fraction form
    14,691.28/20,274.21 = 8,317.71/x
  3. Step 3: Cross multiply
    14,691.28x = 20,274.21 × 8,317.71
  4. Step 4: Simplify right side
    14,691.28x = 168,634,856.30
  5. Step 5: Solve for x
    x = 168,634,856.30/14,691.28
  6. Step 6: Final answer
    x = 11,478.57

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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.