Home / 9,173.48-12,658.66-5,396.78

Finding the Fourth Proportional to 9,173.48, 12,658.66 and 5,396.78

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Solution

The fourth proportional to 9,173.48, 12,658.66 and 5,396.78 is: 7,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.48 : 12,658.66 = 5,396.78 : x
  2. Step 2: Convert to fraction form
    9,173.48/12,658.66 = 5,396.78/x
  3. Step 3: Cross multiply
    9,173.48x = 12,658.66 × 5,396.78
  4. Step 4: Simplify right side
    9,173.48x = 68,316,021.27
  5. Step 5: Solve for x
    x = 68,316,021.27/9,173.48
  6. Step 6: Final answer
    x = 7,447.13

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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.