Home / 14,242.52-21,360.27-6,449.78

Finding the Fourth Proportional to 14,242.52, 21,360.27 and 6,449.78

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Solution

The fourth proportional to 14,242.52, 21,360.27 and 6,449.78 is: 9,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.52 : 21,360.27 = 6,449.78 : x
  2. Step 2: Convert to fraction form
    14,242.52/21,360.27 = 6,449.78/x
  3. Step 3: Cross multiply
    14,242.52x = 21,360.27 × 6,449.78
  4. Step 4: Simplify right side
    14,242.52x = 137,769,042.24
  5. Step 5: Solve for x
    x = 137,769,042.24/14,242.52
  6. Step 6: Final answer
    x = 9,673.08

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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.