Home / 10,591.40-15,886.96-2,586.20

Finding the Fourth Proportional to 10,591.40, 15,886.96 and 2,586.20

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Solution

The fourth proportional to 10,591.40, 15,886.96 and 2,586.20 is: 3,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,591.40 : 15,886.96 = 2,586.20 : x
  2. Step 2: Convert to fraction form
    10,591.40/15,886.96 = 2,586.20/x
  3. Step 3: Cross multiply
    10,591.40x = 15,886.96 × 2,586.20
  4. Step 4: Simplify right side
    10,591.40x = 41,086,855.95
  5. Step 5: Solve for x
    x = 41,086,855.95/10,591.40
  6. Step 6: Final answer
    x = 3,879.27

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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.