Home / 15,110.54-20,849.38-9,142.67

Finding the Fourth Proportional to 15,110.54, 20,849.38 and 9,142.67

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Solution

The fourth proportional to 15,110.54, 20,849.38 and 9,142.67 is: 12,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.54 : 20,849.38 = 9,142.67 : x
  2. Step 2: Convert to fraction form
    15,110.54/20,849.38 = 9,142.67/x
  3. Step 3: Cross multiply
    15,110.54x = 20,849.38 × 9,142.67
  4. Step 4: Simplify right side
    15,110.54x = 190,618,873.94
  5. Step 5: Solve for x
    x = 190,618,873.94/15,110.54
  6. Step 6: Final answer
    x = 12,614.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.