Home / 6,987.66-10,529.24-5,781.54

Finding the Fourth Proportional to 6,987.66, 10,529.24 and 5,781.54

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Solution

The fourth proportional to 6,987.66, 10,529.24 and 5,781.54 is: 8,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.66 : 10,529.24 = 5,781.54 : x
  2. Step 2: Convert to fraction form
    6,987.66/10,529.24 = 5,781.54/x
  3. Step 3: Cross multiply
    6,987.66x = 10,529.24 × 5,781.54
  4. Step 4: Simplify right side
    6,987.66x = 60,875,193.32
  5. Step 5: Solve for x
    x = 60,875,193.32/6,987.66
  6. Step 6: Final answer
    x = 8,711.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.