Home / 10,861.29-14,990.19-6,882.77

Finding the Fourth Proportional to 10,861.29, 14,990.19 and 6,882.77

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Solution

The fourth proportional to 10,861.29, 14,990.19 and 6,882.77 is: 9,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.29 : 14,990.19 = 6,882.77 : x
  2. Step 2: Convert to fraction form
    10,861.29/14,990.19 = 6,882.77/x
  3. Step 3: Cross multiply
    10,861.29x = 14,990.19 × 6,882.77
  4. Step 4: Simplify right side
    10,861.29x = 103,173,955.08
  5. Step 5: Solve for x
    x = 103,173,955.08/10,861.29
  6. Step 6: Final answer
    x = 9,499.24

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Half scale
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Double scale
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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.