Home / 12,790.29-19,189.39-6,554.71

Finding the Fourth Proportional to 12,790.29, 19,189.39 and 6,554.71

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Solution

The fourth proportional to 12,790.29, 19,189.39 and 6,554.71 is: 9,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.29 : 19,189.39 = 6,554.71 : x
  2. Step 2: Convert to fraction form
    12,790.29/19,189.39 = 6,554.71/x
  3. Step 3: Cross multiply
    12,790.29x = 19,189.39 × 6,554.71
  4. Step 4: Simplify right side
    12,790.29x = 125,780,886.53
  5. Step 5: Solve for x
    x = 125,780,886.53/12,790.29
  6. Step 6: Final answer
    x = 9,834.09

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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.