Home / 8,149.19-11,242.26-5,315.91

Finding the Fourth Proportional to 8,149.19, 11,242.26 and 5,315.91

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Solution

The fourth proportional to 8,149.19, 11,242.26 and 5,315.91 is: 7,333.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.19 : 11,242.26 = 5,315.91 : x
  2. Step 2: Convert to fraction form
    8,149.19/11,242.26 = 5,315.91/x
  3. Step 3: Cross multiply
    8,149.19x = 11,242.26 × 5,315.91
  4. Step 4: Simplify right side
    8,149.19x = 59,762,850.93
  5. Step 5: Solve for x
    x = 59,762,850.93/8,149.19
  6. Step 6: Final answer
    x = 7,333.60

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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.