Home / 7,788.24-11,685.12-4,863.12

Finding the Fourth Proportional to 7,788.24, 11,685.12 and 4,863.12

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Solution

The fourth proportional to 7,788.24, 11,685.12 and 4,863.12 is: 7,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.24 : 11,685.12 = 4,863.12 : x
  2. Step 2: Convert to fraction form
    7,788.24/11,685.12 = 4,863.12/x
  3. Step 3: Cross multiply
    7,788.24x = 11,685.12 × 4,863.12
  4. Step 4: Simplify right side
    7,788.24x = 56,826,140.77
  5. Step 5: Solve for x
    x = 56,826,140.77/7,788.24
  6. Step 6: Final answer
    x = 7,296.40

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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.