Home / 13,498.74-20,248.11-4,138.79

Finding the Fourth Proportional to 13,498.74, 20,248.11 and 4,138.79

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Solution

The fourth proportional to 13,498.74, 20,248.11 and 4,138.79 is: 6,208.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498.74 : 20,248.11 = 4,138.79 : x
  2. Step 2: Convert to fraction form
    13,498.74/20,248.11 = 4,138.79/x
  3. Step 3: Cross multiply
    13,498.74x = 20,248.11 × 4,138.79
  4. Step 4: Simplify right side
    13,498.74x = 83,802,573.95
  5. Step 5: Solve for x
    x = 83,802,573.95/13,498.74
  6. Step 6: Final answer
    x = 6,208.18

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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.