Home / 13,080.08-19,631.22-5,690.48

Finding the Fourth Proportional to 13,080.08, 19,631.22 and 5,690.48

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Solution

The fourth proportional to 13,080.08, 19,631.22 and 5,690.48 is: 8,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.08 : 19,631.22 = 5,690.48 : x
  2. Step 2: Convert to fraction form
    13,080.08/19,631.22 = 5,690.48/x
  3. Step 3: Cross multiply
    13,080.08x = 19,631.22 × 5,690.48
  4. Step 4: Simplify right side
    13,080.08x = 111,711,064.79
  5. Step 5: Solve for x
    x = 111,711,064.79/13,080.08
  6. Step 6: Final answer
    x = 8,540.55

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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.