Home / 7,839.86-11,732.32-5,621.14

Finding the Fourth Proportional to 7,839.86, 11,732.32 and 5,621.14

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Solution

The fourth proportional to 7,839.86, 11,732.32 and 5,621.14 is: 8,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.86 : 11,732.32 = 5,621.14 : x
  2. Step 2: Convert to fraction form
    7,839.86/11,732.32 = 5,621.14/x
  3. Step 3: Cross multiply
    7,839.86x = 11,732.32 × 5,621.14
  4. Step 4: Simplify right side
    7,839.86x = 65,949,013.24
  5. Step 5: Solve for x
    x = 65,949,013.24/7,839.86
  6. Step 6: Final answer
    x = 8,412.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.