Home / 11,661.27-16,088.54-8,123.19

Finding the Fourth Proportional to 11,661.27, 16,088.54 and 8,123.19

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Solution

The fourth proportional to 11,661.27, 16,088.54 and 8,123.19 is: 11,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.27 : 16,088.54 = 8,123.19 : x
  2. Step 2: Convert to fraction form
    11,661.27/16,088.54 = 8,123.19/x
  3. Step 3: Cross multiply
    11,661.27x = 16,088.54 × 8,123.19
  4. Step 4: Simplify right side
    11,661.27x = 130,690,226.63
  5. Step 5: Solve for x
    x = 130,690,226.63/11,661.27
  6. Step 6: Final answer
    x = 11,207.20

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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.