Home / 8,788.20-13,069.26-8,511.36

Finding the Fourth Proportional to 8,788.20, 13,069.26 and 8,511.36

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Solution

The fourth proportional to 8,788.20, 13,069.26 and 8,511.36 is: 12,657.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.20 : 13,069.26 = 8,511.36 : x
  2. Step 2: Convert to fraction form
    8,788.20/13,069.26 = 8,511.36/x
  3. Step 3: Cross multiply
    8,788.20x = 13,069.26 × 8,511.36
  4. Step 4: Simplify right side
    8,788.20x = 111,237,176.79
  5. Step 5: Solve for x
    x = 111,237,176.79/8,788.20
  6. Step 6: Final answer
    x = 12,657.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.