Home / 8,440.35-12,663.09-5,979.93

Finding the Fourth Proportional to 8,440.35, 12,663.09 and 5,979.93

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Solution

The fourth proportional to 8,440.35, 12,663.09 and 5,979.93 is: 8,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.35 : 12,663.09 = 5,979.93 : x
  2. Step 2: Convert to fraction form
    8,440.35/12,663.09 = 5,979.93/x
  3. Step 3: Cross multiply
    8,440.35x = 12,663.09 × 5,979.93
  4. Step 4: Simplify right side
    8,440.35x = 75,724,391.78
  5. Step 5: Solve for x
    x = 75,724,391.78/8,440.35
  6. Step 6: Final answer
    x = 8,971.71

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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.