Home / 8,209.91-11,325.72-5,376.02

Finding the Fourth Proportional to 8,209.91, 11,325.72 and 5,376.02

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Solution

The fourth proportional to 8,209.91, 11,325.72 and 5,376.02 is: 7,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.91 : 11,325.72 = 5,376.02 : x
  2. Step 2: Convert to fraction form
    8,209.91/11,325.72 = 5,376.02/x
  3. Step 3: Cross multiply
    8,209.91x = 11,325.72 × 5,376.02
  4. Step 4: Simplify right side
    8,209.91x = 60,887,324.47
  5. Step 5: Solve for x
    x = 60,887,324.47/8,209.91
  6. Step 6: Final answer
    x = 7,416.32

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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.