Home / 12,097.27-18,138.53-5,432.47

Finding the Fourth Proportional to 12,097.27, 18,138.53 and 5,432.47

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Solution

The fourth proportional to 12,097.27, 18,138.53 and 5,432.47 is: 8,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097.27 : 18,138.53 = 5,432.47 : x
  2. Step 2: Convert to fraction form
    12,097.27/18,138.53 = 5,432.47/x
  3. Step 3: Cross multiply
    12,097.27x = 18,138.53 × 5,432.47
  4. Step 4: Simplify right side
    12,097.27x = 98,536,902.21
  5. Step 5: Solve for x
    x = 98,536,902.21/12,097.27
  6. Step 6: Final answer
    x = 8,145.39

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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.