Home / 10,967.12-15,134.40-5,999.12

Finding the Fourth Proportional to 10,967.12, 15,134.40 and 5,999.12

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Solution

The fourth proportional to 10,967.12, 15,134.40 and 5,999.12 is: 8,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,967.12 : 15,134.40 = 5,999.12 : x
  2. Step 2: Convert to fraction form
    10,967.12/15,134.40 = 5,999.12/x
  3. Step 3: Cross multiply
    10,967.12x = 15,134.40 × 5,999.12
  4. Step 4: Simplify right side
    10,967.12x = 90,793,081.73
  5. Step 5: Solve for x
    x = 90,793,081.73/10,967.12
  6. Step 6: Final answer
    x = 8,278.66

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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.