Home / 10,853.28-14,969.61-8,306.76

Finding the Fourth Proportional to 10,853.28, 14,969.61 and 8,306.76

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Solution

The fourth proportional to 10,853.28, 14,969.61 and 8,306.76 is: 11,457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.28 : 14,969.61 = 8,306.76 : x
  2. Step 2: Convert to fraction form
    10,853.28/14,969.61 = 8,306.76/x
  3. Step 3: Cross multiply
    10,853.28x = 14,969.61 × 8,306.76
  4. Step 4: Simplify right side
    10,853.28x = 124,348,957.56
  5. Step 5: Solve for x
    x = 124,348,957.56/10,853.28
  6. Step 6: Final answer
    x = 11,457.27

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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.