Home / 11,146.29-15,373.35-8,161.05

Finding the Fourth Proportional to 11,146.29, 15,373.35 and 8,161.05

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Solution

The fourth proportional to 11,146.29, 15,373.35 and 8,161.05 is: 11,256.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.29 : 15,373.35 = 8,161.05 : x
  2. Step 2: Convert to fraction form
    11,146.29/15,373.35 = 8,161.05/x
  3. Step 3: Cross multiply
    11,146.29x = 15,373.35 × 8,161.05
  4. Step 4: Simplify right side
    11,146.29x = 125,462,678.02
  5. Step 5: Solve for x
    x = 125,462,678.02/11,146.29
  6. Step 6: Final answer
    x = 11,256.00

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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.