Home / 10,780.89-16,158.97-4,856.55

Finding the Fourth Proportional to 10,780.89, 16,158.97 and 4,856.55

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Solution

The fourth proportional to 10,780.89, 16,158.97 and 4,856.55 is: 7,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.89 : 16,158.97 = 4,856.55 : x
  2. Step 2: Convert to fraction form
    10,780.89/16,158.97 = 4,856.55/x
  3. Step 3: Cross multiply
    10,780.89x = 16,158.97 × 4,856.55
  4. Step 4: Simplify right side
    10,780.89x = 78,476,845.75
  5. Step 5: Solve for x
    x = 78,476,845.75/10,780.89
  6. Step 6: Final answer
    x = 7,279.25

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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.