Home / 10,220.20-14,098.10-6,436.86

Finding the Fourth Proportional to 10,220.20, 14,098.10 and 6,436.86

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Solution

The fourth proportional to 10,220.20, 14,098.10 and 6,436.86 is: 8,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.20 : 14,098.10 = 6,436.86 : x
  2. Step 2: Convert to fraction form
    10,220.20/14,098.10 = 6,436.86/x
  3. Step 3: Cross multiply
    10,220.20x = 14,098.10 × 6,436.86
  4. Step 4: Simplify right side
    10,220.20x = 90,747,425.48
  5. Step 5: Solve for x
    x = 90,747,425.48/10,220.20
  6. Step 6: Final answer
    x = 8,879.22

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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.