Home / 8,718.12-12,040.83-5,880.56

Finding the Fourth Proportional to 8,718.12, 12,040.83 and 5,880.56

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Solution

The fourth proportional to 8,718.12, 12,040.83 and 5,880.56 is: 8,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.12 : 12,040.83 = 5,880.56 : x
  2. Step 2: Convert to fraction form
    8,718.12/12,040.83 = 5,880.56/x
  3. Step 3: Cross multiply
    8,718.12x = 12,040.83 × 5,880.56
  4. Step 4: Simplify right side
    8,718.12x = 70,806,763.06
  5. Step 5: Solve for x
    x = 70,806,763.06/8,718.12
  6. Step 6: Final answer
    x = 8,121.79

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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.