Home / 12,442.26-18,663.78-5,516.76

Finding the Fourth Proportional to 12,442.26, 18,663.78 and 5,516.76

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Solution

The fourth proportional to 12,442.26, 18,663.78 and 5,516.76 is: 8,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.26 : 18,663.78 = 5,516.76 : x
  2. Step 2: Convert to fraction form
    12,442.26/18,663.78 = 5,516.76/x
  3. Step 3: Cross multiply
    12,442.26x = 18,663.78 × 5,516.76
  4. Step 4: Simplify right side
    12,442.26x = 102,963,594.95
  5. Step 5: Solve for x
    x = 102,963,594.95/12,442.26
  6. Step 6: Final answer
    x = 8,275.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.