Home / 13,217.11-19,828.71-7,675.09

Finding the Fourth Proportional to 13,217.11, 19,828.71 and 7,675.09

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Solution

The fourth proportional to 13,217.11, 19,828.71 and 7,675.09 is: 11,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.11 : 19,828.71 = 7,675.09 : x
  2. Step 2: Convert to fraction form
    13,217.11/19,828.71 = 7,675.09/x
  3. Step 3: Cross multiply
    13,217.11x = 19,828.71 × 7,675.09
  4. Step 4: Simplify right side
    13,217.11x = 152,187,133.83
  5. Step 5: Solve for x
    x = 152,187,133.83/13,217.11
  6. Step 6: Final answer
    x = 11,514.40

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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.