Home / 10,015.07-15,021.46-2,620.25

Finding the Fourth Proportional to 10,015.07, 15,021.46 and 2,620.25

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Solution

The fourth proportional to 10,015.07, 15,021.46 and 2,620.25 is: 3,930.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.07 : 15,021.46 = 2,620.25 : x
  2. Step 2: Convert to fraction form
    10,015.07/15,021.46 = 2,620.25/x
  3. Step 3: Cross multiply
    10,015.07x = 15,021.46 × 2,620.25
  4. Step 4: Simplify right side
    10,015.07x = 39,359,892.36
  5. Step 5: Solve for x
    x = 39,359,892.36/10,015.07
  6. Step 6: Final answer
    x = 3,930.07

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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.