Home / 13,398.88-20,101.35-4,393.48

Finding the Fourth Proportional to 13,398.88, 20,101.35 and 4,393.48

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Solution

The fourth proportional to 13,398.88, 20,101.35 and 4,393.48 is: 6,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.88 : 20,101.35 = 4,393.48 : x
  2. Step 2: Convert to fraction form
    13,398.88/20,101.35 = 4,393.48/x
  3. Step 3: Cross multiply
    13,398.88x = 20,101.35 × 4,393.48
  4. Step 4: Simplify right side
    13,398.88x = 88,314,834.76
  5. Step 5: Solve for x
    x = 88,314,834.76/13,398.88
  6. Step 6: Final answer
    x = 6,591.21

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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.