Home / 7,855.12-11,780.23-2,307.09

Finding the Fourth Proportional to 7,855.12, 11,780.23 and 2,307.09

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Solution

The fourth proportional to 7,855.12, 11,780.23 and 2,307.09 is: 3,459.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.12 : 11,780.23 = 2,307.09 : x
  2. Step 2: Convert to fraction form
    7,855.12/11,780.23 = 2,307.09/x
  3. Step 3: Cross multiply
    7,855.12x = 11,780.23 × 2,307.09
  4. Step 4: Simplify right side
    7,855.12x = 27,178,050.83
  5. Step 5: Solve for x
    x = 27,178,050.83/7,855.12
  6. Step 6: Final answer
    x = 3,459.92

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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.