Home / 8,999.49-12,416.79-5,812.92

Finding the Fourth Proportional to 8,999.49, 12,416.79 and 5,812.92

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Solution

The fourth proportional to 8,999.49, 12,416.79 and 5,812.92 is: 8,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.49 : 12,416.79 = 5,812.92 : x
  2. Step 2: Convert to fraction form
    8,999.49/12,416.79 = 5,812.92/x
  3. Step 3: Cross multiply
    8,999.49x = 12,416.79 × 5,812.92
  4. Step 4: Simplify right side
    8,999.49x = 72,177,806.93
  5. Step 5: Solve for x
    x = 72,177,806.93/8,999.49
  6. Step 6: Final answer
    x = 8,020.21

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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.