Home / 6,600.81-9,109.67-5,418.57

Finding the Fourth Proportional to 6,600.81, 9,109.67 and 5,418.57

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Solution

The fourth proportional to 6,600.81, 9,109.67 and 5,418.57 is: 7,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.81 : 9,109.67 = 5,418.57 : x
  2. Step 2: Convert to fraction form
    6,600.81/9,109.67 = 5,418.57/x
  3. Step 3: Cross multiply
    6,600.81x = 9,109.67 × 5,418.57
  4. Step 4: Simplify right side
    6,600.81x = 49,361,357.48
  5. Step 5: Solve for x
    x = 49,361,357.48/6,600.81
  6. Step 6: Final answer
    x = 7,478.08

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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.