Home / 13,278.18-18,325.62-8,576.13

Finding the Fourth Proportional to 13,278.18, 18,325.62 and 8,576.13

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Solution

The fourth proportional to 13,278.18, 18,325.62 and 8,576.13 is: 11,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.18 : 18,325.62 = 8,576.13 : x
  2. Step 2: Convert to fraction form
    13,278.18/18,325.62 = 8,576.13/x
  3. Step 3: Cross multiply
    13,278.18x = 18,325.62 × 8,576.13
  4. Step 4: Simplify right side
    13,278.18x = 157,162,899.45
  5. Step 5: Solve for x
    x = 157,162,899.45/13,278.18
  6. Step 6: Final answer
    x = 11,836.18

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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.