Home / 9,165.22-13,749.70-3,900.22

Finding the Fourth Proportional to 9,165.22, 13,749.70 and 3,900.22

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Solution

The fourth proportional to 9,165.22, 13,749.70 and 3,900.22 is: 5,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.22 : 13,749.70 = 3,900.22 : x
  2. Step 2: Convert to fraction form
    9,165.22/13,749.70 = 3,900.22/x
  3. Step 3: Cross multiply
    9,165.22x = 13,749.70 × 3,900.22
  4. Step 4: Simplify right side
    9,165.22x = 53,626,854.93
  5. Step 5: Solve for x
    x = 53,626,854.93/9,165.22
  6. Step 6: Final answer
    x = 5,851.13

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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.