Home / 7,868.09-11,813.76-5,251.89

Finding the Fourth Proportional to 7,868.09, 11,813.76 and 5,251.89

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Solution

The fourth proportional to 7,868.09, 11,813.76 and 5,251.89 is: 7,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.09 : 11,813.76 = 5,251.89 : x
  2. Step 2: Convert to fraction form
    7,868.09/11,813.76 = 5,251.89/x
  3. Step 3: Cross multiply
    7,868.09x = 11,813.76 × 5,251.89
  4. Step 4: Simplify right side
    7,868.09x = 62,044,568.01
  5. Step 5: Solve for x
    x = 62,044,568.01/7,868.09
  6. Step 6: Final answer
    x = 7,885.60

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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.