Home / 7,919.12-11,888.40-4,633.76

Finding the Fourth Proportional to 7,919.12, 11,888.40 and 4,633.76

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Solution

The fourth proportional to 7,919.12, 11,888.40 and 4,633.76 is: 6,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.12 : 11,888.40 = 4,633.76 : x
  2. Step 2: Convert to fraction form
    7,919.12/11,888.40 = 4,633.76/x
  3. Step 3: Cross multiply
    7,919.12x = 11,888.40 × 4,633.76
  4. Step 4: Simplify right side
    7,919.12x = 55,087,992.38
  5. Step 5: Solve for x
    x = 55,087,992.38/7,919.12
  6. Step 6: Final answer
    x = 6,956.33

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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.