Home / 16,279.76-24,419.84-5,186.40

Finding the Fourth Proportional to 16,279.76, 24,419.84 and 5,186.40

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Solution

The fourth proportional to 16,279.76, 24,419.84 and 5,186.40 is: 7,779.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,279.76 : 24,419.84 = 5,186.40 : x
  2. Step 2: Convert to fraction form
    16,279.76/24,419.84 = 5,186.40/x
  3. Step 3: Cross multiply
    16,279.76x = 24,419.84 × 5,186.40
  4. Step 4: Simplify right side
    16,279.76x = 126,651,032.24
  5. Step 5: Solve for x
    x = 126,651,032.24/16,279.76
  6. Step 6: Final answer
    x = 7,779.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.