Home / 12,207.60-18,314.10-5,632.20

Finding the Fourth Proportional to 12,207.60, 18,314.10 and 5,632.20

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Solution

The fourth proportional to 12,207.60, 18,314.10 and 5,632.20 is: 8,449.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.60 : 18,314.10 = 5,632.20 : x
  2. Step 2: Convert to fraction form
    12,207.60/18,314.10 = 5,632.20/x
  3. Step 3: Cross multiply
    12,207.60x = 18,314.10 × 5,632.20
  4. Step 4: Simplify right side
    12,207.60x = 103,148,674.02
  5. Step 5: Solve for x
    x = 103,148,674.02/12,207.60
  6. Step 6: Final answer
    x = 8,449.55

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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.