Home / 8,858.22-12,220.47-5,319.38

Finding the Fourth Proportional to 8,858.22, 12,220.47 and 5,319.38

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Solution

The fourth proportional to 8,858.22, 12,220.47 and 5,319.38 is: 7,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.22 : 12,220.47 = 5,319.38 : x
  2. Step 2: Convert to fraction form
    8,858.22/12,220.47 = 5,319.38/x
  3. Step 3: Cross multiply
    8,858.22x = 12,220.47 × 5,319.38
  4. Step 4: Simplify right side
    8,858.22x = 65,005,262.61
  5. Step 5: Solve for x
    x = 65,005,262.61/8,858.22
  6. Step 6: Final answer
    x = 7,338.41

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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.