Home / 11,286.45-15,570.37-6,807.71

Finding the Fourth Proportional to 11,286.45, 15,570.37 and 6,807.71

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Solution

The fourth proportional to 11,286.45, 15,570.37 and 6,807.71 is: 9,391.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.45 : 15,570.37 = 6,807.71 : x
  2. Step 2: Convert to fraction form
    11,286.45/15,570.37 = 6,807.71/x
  3. Step 3: Cross multiply
    11,286.45x = 15,570.37 × 6,807.71
  4. Step 4: Simplify right side
    11,286.45x = 105,998,563.55
  5. Step 5: Solve for x
    x = 105,998,563.55/11,286.45
  6. Step 6: Final answer
    x = 9,391.67

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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.