Home / 13,687.01-20,530.47-3,298.76

Finding the Fourth Proportional to 13,687.01, 20,530.47 and 3,298.76

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Solution

The fourth proportional to 13,687.01, 20,530.47 and 3,298.76 is: 4,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.01 : 20,530.47 = 3,298.76 : x
  2. Step 2: Convert to fraction form
    13,687.01/20,530.47 = 3,298.76/x
  3. Step 3: Cross multiply
    13,687.01x = 20,530.47 × 3,298.76
  4. Step 4: Simplify right side
    13,687.01x = 67,724,990.56
  5. Step 5: Solve for x
    x = 67,724,990.56/13,687.01
  6. Step 6: Final answer
    x = 4,948.12

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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.