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Finding the Fourth Proportional to 9,325.11, 13,987.67 and 2,750.79

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Solution

The fourth proportional to 9,325.11, 13,987.67 and 2,750.79 is: 4,126.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.11 : 13,987.67 = 2,750.79 : x
  2. Step 2: Convert to fraction form
    9,325.11/13,987.67 = 2,750.79/x
  3. Step 3: Cross multiply
    9,325.11x = 13,987.67 × 2,750.79
  4. Step 4: Simplify right side
    9,325.11x = 38,477,129.01
  5. Step 5: Solve for x
    x = 38,477,129.01/9,325.11
  6. Step 6: Final answer
    x = 4,126.19

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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.