Home / 8,515.28-12,773.76-2,670.32

Finding the Fourth Proportional to 8,515.28, 12,773.76 and 2,670.32

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Solution

The fourth proportional to 8,515.28, 12,773.76 and 2,670.32 is: 4,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.28 : 12,773.76 = 2,670.32 : x
  2. Step 2: Convert to fraction form
    8,515.28/12,773.76 = 2,670.32/x
  3. Step 3: Cross multiply
    8,515.28x = 12,773.76 × 2,670.32
  4. Step 4: Simplify right side
    8,515.28x = 34,110,026.80
  5. Step 5: Solve for x
    x = 34,110,026.80/8,515.28
  6. Step 6: Final answer
    x = 4,005.74

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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.