Home / 10,219.28-15,330.74-2,823.57

Finding the Fourth Proportional to 10,219.28, 15,330.74 and 2,823.57

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Solution

The fourth proportional to 10,219.28, 15,330.74 and 2,823.57 is: 4,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.28 : 15,330.74 = 2,823.57 : x
  2. Step 2: Convert to fraction form
    10,219.28/15,330.74 = 2,823.57/x
  3. Step 3: Cross multiply
    10,219.28x = 15,330.74 × 2,823.57
  4. Step 4: Simplify right side
    10,219.28x = 43,287,403.42
  5. Step 5: Solve for x
    x = 43,287,403.42/10,219.28
  6. Step 6: Final answer
    x = 4,235.86

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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.