Home / 10,219.42-15,329.10-2,823.86

Finding the Fourth Proportional to 10,219.42, 15,329.10 and 2,823.86

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Solution

The fourth proportional to 10,219.42, 15,329.10 and 2,823.86 is: 4,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.42 : 15,329.10 = 2,823.86 : x
  2. Step 2: Convert to fraction form
    10,219.42/15,329.10 = 2,823.86/x
  3. Step 3: Cross multiply
    10,219.42x = 15,329.10 × 2,823.86
  4. Step 4: Simplify right side
    10,219.42x = 43,287,232.33
  5. Step 5: Solve for x
    x = 43,287,232.33/10,219.42
  6. Step 6: Final answer
    x = 4,235.78

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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.