Home / 8,933.22-12,327.80-5,156.33

Finding the Fourth Proportional to 8,933.22, 12,327.80 and 5,156.33

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Solution

The fourth proportional to 8,933.22, 12,327.80 and 5,156.33 is: 7,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,933.22 : 12,327.80 = 5,156.33 : x
  2. Step 2: Convert to fraction form
    8,933.22/12,327.80 = 5,156.33/x
  3. Step 3: Cross multiply
    8,933.22x = 12,327.80 × 5,156.33
  4. Step 4: Simplify right side
    8,933.22x = 63,566,117.55
  5. Step 5: Solve for x
    x = 63,566,117.55/8,933.22
  6. Step 6: Final answer
    x = 7,115.70

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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.