Home / 8,387.74-11,576.21-5,412.23

Finding the Fourth Proportional to 8,387.74, 11,576.21 and 5,412.23

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Solution

The fourth proportional to 8,387.74, 11,576.21 and 5,412.23 is: 7,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.74 : 11,576.21 = 5,412.23 : x
  2. Step 2: Convert to fraction form
    8,387.74/11,576.21 = 5,412.23/x
  3. Step 3: Cross multiply
    8,387.74x = 11,576.21 × 5,412.23
  4. Step 4: Simplify right side
    8,387.74x = 62,653,058.68
  5. Step 5: Solve for x
    x = 62,653,058.68/8,387.74
  6. Step 6: Final answer
    x = 7,469.60

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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.