Home / 11,713.12-16,161.51-7,176.76

Finding the Fourth Proportional to 11,713.12, 16,161.51 and 7,176.76

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Solution

The fourth proportional to 11,713.12, 16,161.51 and 7,176.76 is: 9,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.12 : 16,161.51 = 7,176.76 : x
  2. Step 2: Convert to fraction form
    11,713.12/16,161.51 = 7,176.76/x
  3. Step 3: Cross multiply
    11,713.12x = 16,161.51 × 7,176.76
  4. Step 4: Simplify right side
    11,713.12x = 115,987,265.02
  5. Step 5: Solve for x
    x = 115,987,265.02/11,713.12
  6. Step 6: Final answer
    x = 9,902.34

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Half scale
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Double scale
Find fourth proportional to 11,714.12, 16,162.89 and 7,177.76
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.