Home / 10,021.49-15,017.85-5,629.70

Finding the Fourth Proportional to 10,021.49, 15,017.85 and 5,629.70

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Solution

The fourth proportional to 10,021.49, 15,017.85 and 5,629.70 is: 8,436.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.49 : 15,017.85 = 5,629.70 : x
  2. Step 2: Convert to fraction form
    10,021.49/15,017.85 = 5,629.70/x
  3. Step 3: Cross multiply
    10,021.49x = 15,017.85 × 5,629.70
  4. Step 4: Simplify right side
    10,021.49x = 84,546,027.69
  5. Step 5: Solve for x
    x = 84,546,027.69/10,021.49
  6. Step 6: Final answer
    x = 8,436.48

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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.