Home / 8,247.08-11,378.12-4,661.60

Finding the Fourth Proportional to 8,247.08, 11,378.12 and 4,661.60

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Solution

The fourth proportional to 8,247.08, 11,378.12 and 4,661.60 is: 6,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.08 : 11,378.12 = 4,661.60 : x
  2. Step 2: Convert to fraction form
    8,247.08/11,378.12 = 4,661.60/x
  3. Step 3: Cross multiply
    8,247.08x = 11,378.12 × 4,661.60
  4. Step 4: Simplify right side
    8,247.08x = 53,040,244.19
  5. Step 5: Solve for x
    x = 53,040,244.19/8,247.08
  6. Step 6: Final answer
    x = 6,431.40

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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.