Home / 12,132.20-18,194.70-4,732.40

Finding the Fourth Proportional to 12,132.20, 18,194.70 and 4,732.40

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Solution

The fourth proportional to 12,132.20, 18,194.70 and 4,732.40 is: 7,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.20 : 18,194.70 = 4,732.40 : x
  2. Step 2: Convert to fraction form
    12,132.20/18,194.70 = 4,732.40/x
  3. Step 3: Cross multiply
    12,132.20x = 18,194.70 × 4,732.40
  4. Step 4: Simplify right side
    12,132.20x = 86,104,598.28
  5. Step 5: Solve for x
    x = 86,104,598.28/12,132.20
  6. Step 6: Final answer
    x = 7,097.20

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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.