Home / 12,191.08-18,275.10-5,270.44

Finding the Fourth Proportional to 12,191.08, 18,275.10 and 5,270.44

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Solution

The fourth proportional to 12,191.08, 18,275.10 and 5,270.44 is: 7,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.08 : 18,275.10 = 5,270.44 : x
  2. Step 2: Convert to fraction form
    12,191.08/18,275.10 = 5,270.44/x
  3. Step 3: Cross multiply
    12,191.08x = 18,275.10 × 5,270.44
  4. Step 4: Simplify right side
    12,191.08x = 96,317,818.04
  5. Step 5: Solve for x
    x = 96,317,818.04/12,191.08
  6. Step 6: Final answer
    x = 7,900.68

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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.