Home / 19,912.60-29,820.30-9,512.20

Finding the Fourth Proportional to 19,912.60, 29,820.30 and 9,512.20

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Solution

The fourth proportional to 19,912.60, 29,820.30 and 9,512.20 is: 14,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.60 : 29,820.30 = 9,512.20 : x
  2. Step 2: Convert to fraction form
    19,912.60/29,820.30 = 9,512.20/x
  3. Step 3: Cross multiply
    19,912.60x = 29,820.30 × 9,512.20
  4. Step 4: Simplify right side
    19,912.60x = 283,656,657.66
  5. Step 5: Solve for x
    x = 283,656,657.66/19,912.60
  6. Step 6: Final answer
    x = 14,245.08

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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.