Home / 7,788.11-11,675.67-5,316.80

Finding the Fourth Proportional to 7,788.11, 11,675.67 and 5,316.80

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Solution

The fourth proportional to 7,788.11, 11,675.67 and 5,316.80 is: 7,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.11 : 11,675.67 = 5,316.80 : x
  2. Step 2: Convert to fraction form
    7,788.11/11,675.67 = 5,316.80/x
  3. Step 3: Cross multiply
    7,788.11x = 11,675.67 × 5,316.80
  4. Step 4: Simplify right side
    7,788.11x = 62,077,143.88
  5. Step 5: Solve for x
    x = 62,077,143.88/7,788.11
  6. Step 6: Final answer
    x = 7,970.76

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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.