Home / 15,176.28-20,910.78-10,199.64

Finding the Fourth Proportional to 15,176.28, 20,910.78 and 10,199.64

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Solution

The fourth proportional to 15,176.28, 20,910.78 and 10,199.64 is: 14,053.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.28 : 20,910.78 = 10,199.64 : x
  2. Step 2: Convert to fraction form
    15,176.28/20,910.78 = 10,199.64/x
  3. Step 3: Cross multiply
    15,176.28x = 20,910.78 × 10,199.64
  4. Step 4: Simplify right side
    15,176.28x = 213,282,428.12
  5. Step 5: Solve for x
    x = 213,282,428.12/15,176.28
  6. Step 6: Final answer
    x = 14,053.67

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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.