Home / 7,744.64-10,690.87-5,230.15

Finding the Fourth Proportional to 7,744.64, 10,690.87 and 5,230.15

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Solution

The fourth proportional to 7,744.64, 10,690.87 and 5,230.15 is: 7,219.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,744.64 : 10,690.87 = 5,230.15 : x
  2. Step 2: Convert to fraction form
    7,744.64/10,690.87 = 5,230.15/x
  3. Step 3: Cross multiply
    7,744.64x = 10,690.87 × 5,230.15
  4. Step 4: Simplify right side
    7,744.64x = 55,914,853.73
  5. Step 5: Solve for x
    x = 55,914,853.73/7,744.64
  6. Step 6: Final answer
    x = 7,219.81

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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.