Home / 7,836.08-11,758.15-5,205.40

Finding the Fourth Proportional to 7,836.08, 11,758.15 and 5,205.40

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Solution

The fourth proportional to 7,836.08, 11,758.15 and 5,205.40 is: 7,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.08 : 11,758.15 = 5,205.40 : x
  2. Step 2: Convert to fraction form
    7,836.08/11,758.15 = 5,205.40/x
  3. Step 3: Cross multiply
    7,836.08x = 11,758.15 × 5,205.40
  4. Step 4: Simplify right side
    7,836.08x = 61,205,851.12
  5. Step 5: Solve for x
    x = 61,205,851.12/7,836.08
  6. Step 6: Final answer
    x = 7,810.78

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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.