Home / 15,183.28-20,955.76-8,895.66

Finding the Fourth Proportional to 15,183.28, 20,955.76 and 8,895.66

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Solution

The fourth proportional to 15,183.28, 20,955.76 and 8,895.66 is: 12,277.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.28 : 20,955.76 = 8,895.66 : x
  2. Step 2: Convert to fraction form
    15,183.28/20,955.76 = 8,895.66/x
  3. Step 3: Cross multiply
    15,183.28x = 20,955.76 × 8,895.66
  4. Step 4: Simplify right side
    15,183.28x = 186,415,265.22
  5. Step 5: Solve for x
    x = 186,415,265.22/15,183.28
  6. Step 6: Final answer
    x = 12,277.67

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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.