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Finding the Fourth Proportional to 10,021.80, 15,019.02 and 7,554.57

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Solution

The fourth proportional to 10,021.80, 15,019.02 and 7,554.57 is: 11,321.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.80 : 15,019.02 = 7,554.57 : x
  2. Step 2: Convert to fraction form
    10,021.80/15,019.02 = 7,554.57/x
  3. Step 3: Cross multiply
    10,021.80x = 15,019.02 × 7,554.57
  4. Step 4: Simplify right side
    10,021.80x = 113,462,237.92
  5. Step 5: Solve for x
    x = 113,462,237.92/10,021.80
  6. Step 6: Final answer
    x = 11,321.54

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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.