Home / 13,687.07-20,530.57-3,298.82

Finding the Fourth Proportional to 13,687.07, 20,530.57 and 3,298.82

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Solution

The fourth proportional to 13,687.07, 20,530.57 and 3,298.82 is: 4,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.07 : 20,530.57 = 3,298.82 : x
  2. Step 2: Convert to fraction form
    13,687.07/20,530.57 = 3,298.82/x
  3. Step 3: Cross multiply
    13,687.07x = 20,530.57 × 3,298.82
  4. Step 4: Simplify right side
    13,687.07x = 67,726,714.50
  5. Step 5: Solve for x
    x = 67,726,714.50/13,687.07
  6. Step 6: Final answer
    x = 4,948.23

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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.