Home / 15,419.74-23,136.78-4,891.42

Finding the Fourth Proportional to 15,419.74, 23,136.78 and 4,891.42

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Solution

The fourth proportional to 15,419.74, 23,136.78 and 4,891.42 is: 7,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.74 : 23,136.78 = 4,891.42 : x
  2. Step 2: Convert to fraction form
    15,419.74/23,136.78 = 4,891.42/x
  3. Step 3: Cross multiply
    15,419.74x = 23,136.78 × 4,891.42
  4. Step 4: Simplify right side
    15,419.74x = 113,171,708.43
  5. Step 5: Solve for x
    x = 113,171,708.43/15,419.74
  6. Step 6: Final answer
    x = 7,339.40

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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.