Home / 8,976.67-12,387.60-5,200.51

Finding the Fourth Proportional to 8,976.67, 12,387.60 and 5,200.51

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Solution

The fourth proportional to 8,976.67, 12,387.60 and 5,200.51 is: 7,176.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.67 : 12,387.60 = 5,200.51 : x
  2. Step 2: Convert to fraction form
    8,976.67/12,387.60 = 5,200.51/x
  3. Step 3: Cross multiply
    8,976.67x = 12,387.60 × 5,200.51
  4. Step 4: Simplify right side
    8,976.67x = 64,421,837.68
  5. Step 5: Solve for x
    x = 64,421,837.68/8,976.67
  6. Step 6: Final answer
    x = 7,176.59

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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.