Home / 10,718.60-16,077.90-2,928.20

Finding the Fourth Proportional to 10,718.60, 16,077.90 and 2,928.20

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Solution

The fourth proportional to 10,718.60, 16,077.90 and 2,928.20 is: 4,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,718.60 : 16,077.90 = 2,928.20 : x
  2. Step 2: Convert to fraction form
    10,718.60/16,077.90 = 2,928.20/x
  3. Step 3: Cross multiply
    10,718.60x = 16,077.90 × 2,928.20
  4. Step 4: Simplify right side
    10,718.60x = 47,079,306.78
  5. Step 5: Solve for x
    x = 47,079,306.78/10,718.60
  6. Step 6: Final answer
    x = 4,392.30

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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.