Home / 10,049.74-13,861.40-6,642.79

Finding the Fourth Proportional to 10,049.74, 13,861.40 and 6,642.79

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Solution

The fourth proportional to 10,049.74, 13,861.40 and 6,642.79 is: 9,162.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,049.74 : 13,861.40 = 6,642.79 : x
  2. Step 2: Convert to fraction form
    10,049.74/13,861.40 = 6,642.79/x
  3. Step 3: Cross multiply
    10,049.74x = 13,861.40 × 6,642.79
  4. Step 4: Simplify right side
    10,049.74x = 92,078,435.46
  5. Step 5: Solve for x
    x = 92,078,435.46/10,049.74
  6. Step 6: Final answer
    x = 9,162.27

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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.