Home / 8,974.93-12,391.50-5,619.10

Finding the Fourth Proportional to 8,974.93, 12,391.50 and 5,619.10

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Solution

The fourth proportional to 8,974.93, 12,391.50 and 5,619.10 is: 7,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.93 : 12,391.50 = 5,619.10 : x
  2. Step 2: Convert to fraction form
    8,974.93/12,391.50 = 5,619.10/x
  3. Step 3: Cross multiply
    8,974.93x = 12,391.50 × 5,619.10
  4. Step 4: Simplify right side
    8,974.93x = 69,629,077.65
  5. Step 5: Solve for x
    x = 69,629,077.65/8,974.93
  6. Step 6: Final answer
    x = 7,758.18

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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.