Home / 13,446.84-20,079.61-10,986.52

Finding the Fourth Proportional to 13,446.84, 20,079.61 and 10,986.52

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Solution

The fourth proportional to 13,446.84, 20,079.61 and 10,986.52 is: 16,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.84 : 20,079.61 = 10,986.52 : x
  2. Step 2: Convert to fraction form
    13,446.84/20,079.61 = 10,986.52/x
  3. Step 3: Cross multiply
    13,446.84x = 20,079.61 × 10,986.52
  4. Step 4: Simplify right side
    13,446.84x = 220,605,036.86
  5. Step 5: Solve for x
    x = 220,605,036.86/13,446.84
  6. Step 6: Final answer
    x = 16,405.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.