Home / 9,108.16-13,661.04-2,868.20

Finding the Fourth Proportional to 9,108.16, 13,661.04 and 2,868.20

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Solution

The fourth proportional to 9,108.16, 13,661.04 and 2,868.20 is: 4,301.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.16 : 13,661.04 = 2,868.20 : x
  2. Step 2: Convert to fraction form
    9,108.16/13,661.04 = 2,868.20/x
  3. Step 3: Cross multiply
    9,108.16x = 13,661.04 × 2,868.20
  4. Step 4: Simplify right side
    9,108.16x = 39,182,594.93
  5. Step 5: Solve for x
    x = 39,182,594.93/9,108.16
  6. Step 6: Final answer
    x = 4,301.92

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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.