Home / 11,809.28-16,280.48-8,446.23

Finding the Fourth Proportional to 11,809.28, 16,280.48 and 8,446.23

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Solution

The fourth proportional to 11,809.28, 16,280.48 and 8,446.23 is: 11,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.28 : 16,280.48 = 8,446.23 : x
  2. Step 2: Convert to fraction form
    11,809.28/16,280.48 = 8,446.23/x
  3. Step 3: Cross multiply
    11,809.28x = 16,280.48 × 8,446.23
  4. Step 4: Simplify right side
    11,809.28x = 137,508,699.71
  5. Step 5: Solve for x
    x = 137,508,699.71/11,809.28
  6. Step 6: Final answer
    x = 11,644.12

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Half scale
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Double scale
Find fourth proportional to 11,810.28, 16,281.86 and 8,447.23
Similar ratio
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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.