Home / 10,219.78-15,329.64-2,824.22

Finding the Fourth Proportional to 10,219.78, 15,329.64 and 2,824.22

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Solution

The fourth proportional to 10,219.78, 15,329.64 and 2,824.22 is: 4,236.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.78 : 15,329.64 = 2,824.22 : x
  2. Step 2: Convert to fraction form
    10,219.78/15,329.64 = 2,824.22/x
  3. Step 3: Cross multiply
    10,219.78x = 15,329.64 × 2,824.22
  4. Step 4: Simplify right side
    10,219.78x = 43,294,275.88
  5. Step 5: Solve for x
    x = 43,294,275.88/10,219.78
  6. Step 6: Final answer
    x = 4,236.32

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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.