Home / 8,386.20-11,580.30-5,247.72

Finding the Fourth Proportional to 8,386.20, 11,580.30 and 5,247.72

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Solution

The fourth proportional to 8,386.20, 11,580.30 and 5,247.72 is: 7,246.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.20 : 11,580.30 = 5,247.72 : x
  2. Step 2: Convert to fraction form
    8,386.20/11,580.30 = 5,247.72/x
  3. Step 3: Cross multiply
    8,386.20x = 11,580.30 × 5,247.72
  4. Step 4: Simplify right side
    8,386.20x = 60,770,171.92
  5. Step 5: Solve for x
    x = 60,770,171.92/8,386.20
  6. Step 6: Final answer
    x = 7,246.45

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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.