Home / 10,204.18-14,081.70-6,429.78

Finding the Fourth Proportional to 10,204.18, 14,081.70 and 6,429.78

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Solution

The fourth proportional to 10,204.18, 14,081.70 and 6,429.78 is: 8,873.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204.18 : 14,081.70 = 6,429.78 : x
  2. Step 2: Convert to fraction form
    10,204.18/14,081.70 = 6,429.78/x
  3. Step 3: Cross multiply
    10,204.18x = 14,081.70 × 6,429.78
  4. Step 4: Simplify right side
    10,204.18x = 90,542,220.97
  5. Step 5: Solve for x
    x = 90,542,220.97/10,204.18
  6. Step 6: Final answer
    x = 8,873.05

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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.