Home / 14,442.20-19,931.16-8,471.69

Finding the Fourth Proportional to 14,442.20, 19,931.16 and 8,471.69

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Solution

The fourth proportional to 14,442.20, 19,931.16 and 8,471.69 is: 11,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,442.20 : 19,931.16 = 8,471.69 : x
  2. Step 2: Convert to fraction form
    14,442.20/19,931.16 = 8,471.69/x
  3. Step 3: Cross multiply
    14,442.20x = 19,931.16 × 8,471.69
  4. Step 4: Simplify right side
    14,442.20x = 168,850,615.72
  5. Step 5: Solve for x
    x = 168,850,615.72/14,442.20
  6. Step 6: Final answer
    x = 11,691.48

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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.