Home / 7,778.43-10,737.56-5,121.23

Finding the Fourth Proportional to 7,778.43, 10,737.56 and 5,121.23

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Solution

The fourth proportional to 7,778.43, 10,737.56 and 5,121.23 is: 7,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.43 : 10,737.56 = 5,121.23 : x
  2. Step 2: Convert to fraction form
    7,778.43/10,737.56 = 5,121.23/x
  3. Step 3: Cross multiply
    7,778.43x = 10,737.56 × 5,121.23
  4. Step 4: Simplify right side
    7,778.43x = 54,989,473.51
  5. Step 5: Solve for x
    x = 54,989,473.51/7,778.43
  6. Step 6: Final answer
    x = 7,069.48

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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.