Home / 10,074.28-15,114.78-4,880.68

Finding the Fourth Proportional to 10,074.28, 15,114.78 and 4,880.68

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Solution

The fourth proportional to 10,074.28, 15,114.78 and 4,880.68 is: 7,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,074.28 : 15,114.78 = 4,880.68 : x
  2. Step 2: Convert to fraction form
    10,074.28/15,114.78 = 4,880.68/x
  3. Step 3: Cross multiply
    10,074.28x = 15,114.78 × 4,880.68
  4. Step 4: Simplify right side
    10,074.28x = 73,770,404.45
  5. Step 5: Solve for x
    x = 73,770,404.45/10,074.28
  6. Step 6: Final answer
    x = 7,322.65

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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.