Home / 11,621.74-17,432.76-2,856.64

Finding the Fourth Proportional to 11,621.74, 17,432.76 and 2,856.64

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Solution

The fourth proportional to 11,621.74, 17,432.76 and 2,856.64 is: 4,285.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.74 : 17,432.76 = 2,856.64 : x
  2. Step 2: Convert to fraction form
    11,621.74/17,432.76 = 2,856.64/x
  3. Step 3: Cross multiply
    11,621.74x = 17,432.76 × 2,856.64
  4. Step 4: Simplify right side
    11,621.74x = 49,799,119.53
  5. Step 5: Solve for x
    x = 49,799,119.53/11,621.74
  6. Step 6: Final answer
    x = 4,285.00

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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.