Home / 12,576.25-18,864.38-4,785.06

Finding the Fourth Proportional to 12,576.25, 18,864.38 and 4,785.06

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Solution

The fourth proportional to 12,576.25, 18,864.38 and 4,785.06 is: 7,177.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.25 : 18,864.38 = 4,785.06 : x
  2. Step 2: Convert to fraction form
    12,576.25/18,864.38 = 4,785.06/x
  3. Step 3: Cross multiply
    12,576.25x = 18,864.38 × 4,785.06
  4. Step 4: Simplify right side
    12,576.25x = 90,267,190.16
  5. Step 5: Solve for x
    x = 90,267,190.16/12,576.25
  6. Step 6: Final answer
    x = 7,177.59

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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.