Home / 12,540.22-18,812.12-6,693.64

Finding the Fourth Proportional to 12,540.22, 18,812.12 and 6,693.64

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Solution

The fourth proportional to 12,540.22, 18,812.12 and 6,693.64 is: 10,041.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.22 : 18,812.12 = 6,693.64 : x
  2. Step 2: Convert to fraction form
    12,540.22/18,812.12 = 6,693.64/x
  3. Step 3: Cross multiply
    12,540.22x = 18,812.12 × 6,693.64
  4. Step 4: Simplify right side
    12,540.22x = 125,921,478.42
  5. Step 5: Solve for x
    x = 125,921,478.42/12,540.22
  6. Step 6: Final answer
    x = 10,041.41

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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.