Home / 10,861.41-14,990.36-6,882.89

Finding the Fourth Proportional to 10,861.41, 14,990.36 and 6,882.89

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Solution

The fourth proportional to 10,861.41, 14,990.36 and 6,882.89 is: 9,499.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.41 : 14,990.36 = 6,882.89 : x
  2. Step 2: Convert to fraction form
    10,861.41/14,990.36 = 6,882.89/x
  3. Step 3: Cross multiply
    10,861.41x = 14,990.36 × 6,882.89
  4. Step 4: Simplify right side
    10,861.41x = 103,176,998.94
  5. Step 5: Solve for x
    x = 103,176,998.94/10,861.41
  6. Step 6: Final answer
    x = 9,499.41

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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.