Home / 12,898.33-17,793.11-8,424.70

Finding the Fourth Proportional to 12,898.33, 17,793.11 and 8,424.70

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Solution

The fourth proportional to 12,898.33, 17,793.11 and 8,424.70 is: 11,621.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.33 : 17,793.11 = 8,424.70 : x
  2. Step 2: Convert to fraction form
    12,898.33/17,793.11 = 8,424.70/x
  3. Step 3: Cross multiply
    12,898.33x = 17,793.11 × 8,424.70
  4. Step 4: Simplify right side
    12,898.33x = 149,901,590.40
  5. Step 5: Solve for x
    x = 149,901,590.40/12,898.33
  6. Step 6: Final answer
    x = 11,621.79

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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.