Home / 10,148.06-15,218.06-4,220.97

Finding the Fourth Proportional to 10,148.06, 15,218.06 and 4,220.97

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Solution

The fourth proportional to 10,148.06, 15,218.06 and 4,220.97 is: 6,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,148.06 : 15,218.06 = 4,220.97 : x
  2. Step 2: Convert to fraction form
    10,148.06/15,218.06 = 4,220.97/x
  3. Step 3: Cross multiply
    10,148.06x = 15,218.06 × 4,220.97
  4. Step 4: Simplify right side
    10,148.06x = 64,234,953.61
  5. Step 5: Solve for x
    x = 64,234,953.61/10,148.06
  6. Step 6: Final answer
    x = 6,329.78

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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.