Home / 11,988.40-16,543.60-7,514.56

Finding the Fourth Proportional to 11,988.40, 16,543.60 and 7,514.56

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Solution

The fourth proportional to 11,988.40, 16,543.60 and 7,514.56 is: 10,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.40 : 16,543.60 = 7,514.56 : x
  2. Step 2: Convert to fraction form
    11,988.40/16,543.60 = 7,514.56/x
  3. Step 3: Cross multiply
    11,988.40x = 16,543.60 × 7,514.56
  4. Step 4: Simplify right side
    11,988.40x = 124,317,874.82
  5. Step 5: Solve for x
    x = 124,317,874.82/11,988.40
  6. Step 6: Final answer
    x = 10,369.85

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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.