Home / 7,857.12-11,785.70-2,013.74

Finding the Fourth Proportional to 7,857.12, 11,785.70 and 2,013.74

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Solution

The fourth proportional to 7,857.12, 11,785.70 and 2,013.74 is: 3,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.12 : 11,785.70 = 2,013.74 : x
  2. Step 2: Convert to fraction form
    7,857.12/11,785.70 = 2,013.74/x
  3. Step 3: Cross multiply
    7,857.12x = 11,785.70 × 2,013.74
  4. Step 4: Simplify right side
    7,857.12x = 23,733,335.52
  5. Step 5: Solve for x
    x = 23,733,335.52/7,857.12
  6. Step 6: Final answer
    x = 3,020.62

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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.