Home / 7,985.79-11,984.13-4,092.93

Finding the Fourth Proportional to 7,985.79, 11,984.13 and 4,092.93

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Solution

The fourth proportional to 7,985.79, 11,984.13 and 4,092.93 is: 6,142.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.79 : 11,984.13 = 4,092.93 : x
  2. Step 2: Convert to fraction form
    7,985.79/11,984.13 = 4,092.93/x
  3. Step 3: Cross multiply
    7,985.79x = 11,984.13 × 4,092.93
  4. Step 4: Simplify right side
    7,985.79x = 49,050,205.20
  5. Step 5: Solve for x
    x = 49,050,205.20/7,985.79
  6. Step 6: Final answer
    x = 6,142.19

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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.