Home / 11,519.62-15,897.06-6,742.85

Finding the Fourth Proportional to 11,519.62, 15,897.06 and 6,742.85

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Solution

The fourth proportional to 11,519.62, 15,897.06 and 6,742.85 is: 9,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,519.62 : 15,897.06 = 6,742.85 : x
  2. Step 2: Convert to fraction form
    11,519.62/15,897.06 = 6,742.85/x
  3. Step 3: Cross multiply
    11,519.62x = 15,897.06 × 6,742.85
  4. Step 4: Simplify right side
    11,519.62x = 107,191,411.54
  5. Step 5: Solve for x
    x = 107,191,411.54/11,519.62
  6. Step 6: Final answer
    x = 9,305.12

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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.