Home / 13,080.38-19,590.87-6,491.84

Finding the Fourth Proportional to 13,080.38, 19,590.87 and 6,491.84

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Solution

The fourth proportional to 13,080.38, 19,590.87 and 6,491.84 is: 9,723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.38 : 19,590.87 = 6,491.84 : x
  2. Step 2: Convert to fraction form
    13,080.38/19,590.87 = 6,491.84/x
  3. Step 3: Cross multiply
    13,080.38x = 19,590.87 × 6,491.84
  4. Step 4: Simplify right side
    13,080.38x = 127,180,793.50
  5. Step 5: Solve for x
    x = 127,180,793.50/13,080.38
  6. Step 6: Final answer
    x = 9,723.02

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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.