Home / 12,768.68-19,155-6,525.29

Finding the Fourth Proportional to 12,768.68, 19,155 and 6,525.29

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Solution

The fourth proportional to 12,768.68, 19,155 and 6,525.29 is: 9,788.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.68 : 19,155 = 6,525.29 : x
  2. Step 2: Convert to fraction form
    12,768.68/19,155 = 6,525.29/x
  3. Step 3: Cross multiply
    12,768.68x = 19,155 × 6,525.29
  4. Step 4: Simplify right side
    12,768.68x = 124,991,834.18
  5. Step 5: Solve for x
    x = 124,991,834.18/12,768.68
  6. Step 6: Final answer
    x = 9,788.94

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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.