Home / 10,456.05-15,687.15-4,212.85

Finding the Fourth Proportional to 10,456.05, 15,687.15 and 4,212.85

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Solution

The fourth proportional to 10,456.05, 15,687.15 and 4,212.85 is: 6,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,456.05 : 15,687.15 = 4,212.85 : x
  2. Step 2: Convert to fraction form
    10,456.05/15,687.15 = 4,212.85/x
  3. Step 3: Cross multiply
    10,456.05x = 15,687.15 × 4,212.85
  4. Step 4: Simplify right side
    10,456.05x = 66,087,652.09
  5. Step 5: Solve for x
    x = 66,087,652.09/10,456.05
  6. Step 6: Final answer
    x = 6,320.52

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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.