Home / 8,215.70-11,347.09-5,987.52

Finding the Fourth Proportional to 8,215.70, 11,347.09 and 5,987.52

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Solution

The fourth proportional to 8,215.70, 11,347.09 and 5,987.52 is: 8,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.70 : 11,347.09 = 5,987.52 : x
  2. Step 2: Convert to fraction form
    8,215.70/11,347.09 = 5,987.52/x
  3. Step 3: Cross multiply
    8,215.70x = 11,347.09 × 5,987.52
  4. Step 4: Simplify right side
    8,215.70x = 67,940,913.35
  5. Step 5: Solve for x
    x = 67,940,913.35/8,215.70
  6. Step 6: Final answer
    x = 8,269.65

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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.