Home / 11,025.78-15,215.51-5,989.96

Finding the Fourth Proportional to 11,025.78, 15,215.51 and 5,989.96

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Solution

The fourth proportional to 11,025.78, 15,215.51 and 5,989.96 is: 8,266.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,025.78 : 15,215.51 = 5,989.96 : x
  2. Step 2: Convert to fraction form
    11,025.78/15,215.51 = 5,989.96/x
  3. Step 3: Cross multiply
    11,025.78x = 15,215.51 × 5,989.96
  4. Step 4: Simplify right side
    11,025.78x = 91,140,220.20
  5. Step 5: Solve for x
    x = 91,140,220.20/11,025.78
  6. Step 6: Final answer
    x = 8,266.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.