Home / 12,240.20-18,360.30-4,448

Finding the Fourth Proportional to 12,240.20, 18,360.30 and 4,448

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Solution

The fourth proportional to 12,240.20, 18,360.30 and 4,448 is: 6,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.20 : 18,360.30 = 4,448 : x
  2. Step 2: Convert to fraction form
    12,240.20/18,360.30 = 4,448/x
  3. Step 3: Cross multiply
    12,240.20x = 18,360.30 × 4,448
  4. Step 4: Simplify right side
    12,240.20x = 81,666,614.40
  5. Step 5: Solve for x
    x = 81,666,614.40/12,240.20
  6. Step 6: Final answer
    x = 6,672.00

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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.