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Finding the Fourth Proportional to 8,888.75, 13,331.07 and 2,648.20

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Solution

The fourth proportional to 8,888.75, 13,331.07 and 2,648.20 is: 3,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.75 : 13,331.07 = 2,648.20 : x
  2. Step 2: Convert to fraction form
    8,888.75/13,331.07 = 2,648.20/x
  3. Step 3: Cross multiply
    8,888.75x = 13,331.07 × 2,648.20
  4. Step 4: Simplify right side
    8,888.75x = 35,303,339.57
  5. Step 5: Solve for x
    x = 35,303,339.57/8,888.75
  6. Step 6: Final answer
    x = 3,971.69

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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.