Home / 12,442.10-18,663.68-4,122.84

Finding the Fourth Proportional to 12,442.10, 18,663.68 and 4,122.84

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Solution

The fourth proportional to 12,442.10, 18,663.68 and 4,122.84 is: 6,184.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.10 : 18,663.68 = 4,122.84 : x
  2. Step 2: Convert to fraction form
    12,442.10/18,663.68 = 4,122.84/x
  3. Step 3: Cross multiply
    12,442.10x = 18,663.68 × 4,122.84
  4. Step 4: Simplify right side
    12,442.10x = 76,947,345.84
  5. Step 5: Solve for x
    x = 76,947,345.84/12,442.10
  6. Step 6: Final answer
    x = 6,184.44

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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.