Home / 7,998.85-11,035.95-5,167.80

Finding the Fourth Proportional to 7,998.85, 11,035.95 and 5,167.80

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Solution

The fourth proportional to 7,998.85, 11,035.95 and 5,167.80 is: 7,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.85 : 11,035.95 = 5,167.80 : x
  2. Step 2: Convert to fraction form
    7,998.85/11,035.95 = 5,167.80/x
  3. Step 3: Cross multiply
    7,998.85x = 11,035.95 × 5,167.80
  4. Step 4: Simplify right side
    7,998.85x = 57,031,563.03
  5. Step 5: Solve for x
    x = 57,031,563.03/7,998.85
  6. Step 6: Final answer
    x = 7,129.97

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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.