Home / 8,072.94-12,038.77-7,999.13

Finding the Fourth Proportional to 8,072.94, 12,038.77 and 7,999.13

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Solution

The fourth proportional to 8,072.94, 12,038.77 and 7,999.13 is: 11,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.94 : 12,038.77 = 7,999.13 : x
  2. Step 2: Convert to fraction form
    8,072.94/12,038.77 = 7,999.13/x
  3. Step 3: Cross multiply
    8,072.94x = 12,038.77 × 7,999.13
  4. Step 4: Simplify right side
    8,072.94x = 96,299,686.27
  5. Step 5: Solve for x
    x = 96,299,686.27/8,072.94
  6. Step 6: Final answer
    x = 11,928.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.