Home / 6,315.31-8,718.87-5,614.75

Finding the Fourth Proportional to 6,315.31, 8,718.87 and 5,614.75

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Solution

The fourth proportional to 6,315.31, 8,718.87 and 5,614.75 is: 7,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.31 : 8,718.87 = 5,614.75 : x
  2. Step 2: Convert to fraction form
    6,315.31/8,718.87 = 5,614.75/x
  3. Step 3: Cross multiply
    6,315.31x = 8,718.87 × 5,614.75
  4. Step 4: Simplify right side
    6,315.31x = 48,954,275.33
  5. Step 5: Solve for x
    x = 48,954,275.33/6,315.31
  6. Step 6: Final answer
    x = 7,751.68

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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.