Home / 14,442.91-19,930.56-8,479.69

Finding the Fourth Proportional to 14,442.91, 19,930.56 and 8,479.69

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Solution

The fourth proportional to 14,442.91, 19,930.56 and 8,479.69 is: 11,701.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,442.91 : 19,930.56 = 8,479.69 : x
  2. Step 2: Convert to fraction form
    14,442.91/19,930.56 = 8,479.69/x
  3. Step 3: Cross multiply
    14,442.91x = 19,930.56 × 8,479.69
  4. Step 4: Simplify right side
    14,442.91x = 169,004,888.70
  5. Step 5: Solve for x
    x = 169,004,888.70/14,442.91
  6. Step 6: Final answer
    x = 11,701.58

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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.