Home / 10,021.90-13,828.97-5,545.03

Finding the Fourth Proportional to 10,021.90, 13,828.97 and 5,545.03

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Solution

The fourth proportional to 10,021.90, 13,828.97 and 5,545.03 is: 7,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.90 : 13,828.97 = 5,545.03 : x
  2. Step 2: Convert to fraction form
    10,021.90/13,828.97 = 5,545.03/x
  3. Step 3: Cross multiply
    10,021.90x = 13,828.97 × 5,545.03
  4. Step 4: Simplify right side
    10,021.90x = 76,681,956.65
  5. Step 5: Solve for x
    x = 76,681,956.65/10,021.90
  6. Step 6: Final answer
    x = 7,651.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.