Home / 15,147.14-22,719.08-5,286.60

Finding the Fourth Proportional to 15,147.14, 22,719.08 and 5,286.60

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Solution

The fourth proportional to 15,147.14, 22,719.08 and 5,286.60 is: 7,929.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.14 : 22,719.08 = 5,286.60 : x
  2. Step 2: Convert to fraction form
    15,147.14/22,719.08 = 5,286.60/x
  3. Step 3: Cross multiply
    15,147.14x = 22,719.08 × 5,286.60
  4. Step 4: Simplify right side
    15,147.14x = 120,106,688.33
  5. Step 5: Solve for x
    x = 120,106,688.33/15,147.14
  6. Step 6: Final answer
    x = 7,929.33

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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.