Home / 6,871.65-10,296.77-5,315.51

Finding the Fourth Proportional to 6,871.65, 10,296.77 and 5,315.51

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Solution

The fourth proportional to 6,871.65, 10,296.77 and 5,315.51 is: 7,964.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.65 : 10,296.77 = 5,315.51 : x
  2. Step 2: Convert to fraction form
    6,871.65/10,296.77 = 5,315.51/x
  3. Step 3: Cross multiply
    6,871.65x = 10,296.77 × 5,315.51
  4. Step 4: Simplify right side
    6,871.65x = 54,732,505.84
  5. Step 5: Solve for x
    x = 54,732,505.84/6,871.65
  6. Step 6: Final answer
    x = 7,964.97

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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.