Home / 8,928.50-12,321.33-5,203.22

Finding the Fourth Proportional to 8,928.50, 12,321.33 and 5,203.22

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Solution

The fourth proportional to 8,928.50, 12,321.33 and 5,203.22 is: 7,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.50 : 12,321.33 = 5,203.22 : x
  2. Step 2: Convert to fraction form
    8,928.50/12,321.33 = 5,203.22/x
  3. Step 3: Cross multiply
    8,928.50x = 12,321.33 × 5,203.22
  4. Step 4: Simplify right side
    8,928.50x = 64,110,590.68
  5. Step 5: Solve for x
    x = 64,110,590.68/8,928.50
  6. Step 6: Final answer
    x = 7,180.44

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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.