Home / 7,923.76-11,876.84-4,020.12

Finding the Fourth Proportional to 7,923.76, 11,876.84 and 4,020.12

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Solution

The fourth proportional to 7,923.76, 11,876.84 and 4,020.12 is: 6,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.76 : 11,876.84 = 4,020.12 : x
  2. Step 2: Convert to fraction form
    7,923.76/11,876.84 = 4,020.12/x
  3. Step 3: Cross multiply
    7,923.76x = 11,876.84 × 4,020.12
  4. Step 4: Simplify right side
    7,923.76x = 47,746,322.02
  5. Step 5: Solve for x
    x = 47,746,322.02/7,923.76
  6. Step 6: Final answer
    x = 6,025.72

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1.5x scale

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.