Home / 11,479.60-17,219.61-3,159.57

Finding the Fourth Proportional to 11,479.60, 17,219.61 and 3,159.57

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Solution

The fourth proportional to 11,479.60, 17,219.61 and 3,159.57 is: 4,739.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.60 : 17,219.61 = 3,159.57 : x
  2. Step 2: Convert to fraction form
    11,479.60/17,219.61 = 3,159.57/x
  3. Step 3: Cross multiply
    11,479.60x = 17,219.61 × 3,159.57
  4. Step 4: Simplify right side
    11,479.60x = 54,406,563.17
  5. Step 5: Solve for x
    x = 54,406,563.17/11,479.60
  6. Step 6: Final answer
    x = 4,739.41

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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.