Home / 13,335.25-18,406.20-8,296.61

Finding the Fourth Proportional to 13,335.25, 18,406.20 and 8,296.61

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Solution

The fourth proportional to 13,335.25, 18,406.20 and 8,296.61 is: 11,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.25 : 18,406.20 = 8,296.61 : x
  2. Step 2: Convert to fraction form
    13,335.25/18,406.20 = 8,296.61/x
  3. Step 3: Cross multiply
    13,335.25x = 18,406.20 × 8,296.61
  4. Step 4: Simplify right side
    13,335.25x = 152,709,062.98
  5. Step 5: Solve for x
    x = 152,709,062.98/13,335.25
  6. Step 6: Final answer
    x = 11,451.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.