Home / 8,002.12-11,039.41-7,631.55

Finding the Fourth Proportional to 8,002.12, 11,039.41 and 7,631.55

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Solution

The fourth proportional to 8,002.12, 11,039.41 and 7,631.55 is: 10,528.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,002.12 : 11,039.41 = 7,631.55 : x
  2. Step 2: Convert to fraction form
    8,002.12/11,039.41 = 7,631.55/x
  3. Step 3: Cross multiply
    8,002.12x = 11,039.41 × 7,631.55
  4. Step 4: Simplify right side
    8,002.12x = 84,247,809.39
  5. Step 5: Solve for x
    x = 84,247,809.39/8,002.12
  6. Step 6: Final answer
    x = 10,528.19

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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.