Home / 8,721.22-13,065.36-6,750.22

Finding the Fourth Proportional to 8,721.22, 13,065.36 and 6,750.22

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Solution

The fourth proportional to 8,721.22, 13,065.36 and 6,750.22 is: 10,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.22 : 13,065.36 = 6,750.22 : x
  2. Step 2: Convert to fraction form
    8,721.22/13,065.36 = 6,750.22/x
  3. Step 3: Cross multiply
    8,721.22x = 13,065.36 × 6,750.22
  4. Step 4: Simplify right side
    8,721.22x = 88,194,054.38
  5. Step 5: Solve for x
    x = 88,194,054.38/8,721.22
  6. Step 6: Final answer
    x = 10,112.58

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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.