Home / 10,040.19-13,861.95-6,456.75

Finding the Fourth Proportional to 10,040.19, 13,861.95 and 6,456.75

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Solution

The fourth proportional to 10,040.19, 13,861.95 and 6,456.75 is: 8,914.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.19 : 13,861.95 = 6,456.75 : x
  2. Step 2: Convert to fraction form
    10,040.19/13,861.95 = 6,456.75/x
  3. Step 3: Cross multiply
    10,040.19x = 13,861.95 × 6,456.75
  4. Step 4: Simplify right side
    10,040.19x = 89,503,145.66
  5. Step 5: Solve for x
    x = 89,503,145.66/10,040.19
  6. Step 6: Final answer
    x = 8,914.49

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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.