Home / 7,836.68-10,821.16-5,195.88

Finding the Fourth Proportional to 7,836.68, 10,821.16 and 5,195.88

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Solution

The fourth proportional to 7,836.68, 10,821.16 and 5,195.88 is: 7,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.68 : 10,821.16 = 5,195.88 : x
  2. Step 2: Convert to fraction form
    7,836.68/10,821.16 = 5,195.88/x
  3. Step 3: Cross multiply
    7,836.68x = 10,821.16 × 5,195.88
  4. Step 4: Simplify right side
    7,836.68x = 56,225,448.82
  5. Step 5: Solve for x
    x = 56,225,448.82/7,836.68
  6. Step 6: Final answer
    x = 7,174.65

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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.