Home / 12,209.24-18,314.40-4,419.20

Finding the Fourth Proportional to 12,209.24, 18,314.40 and 4,419.20

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Solution

The fourth proportional to 12,209.24, 18,314.40 and 4,419.20 is: 6,629.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.24 : 18,314.40 = 4,419.20 : x
  2. Step 2: Convert to fraction form
    12,209.24/18,314.40 = 4,419.20/x
  3. Step 3: Cross multiply
    12,209.24x = 18,314.40 × 4,419.20
  4. Step 4: Simplify right side
    12,209.24x = 80,934,996.48
  5. Step 5: Solve for x
    x = 80,934,996.48/12,209.24
  6. Step 6: Final answer
    x = 6,629.00

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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.