Home / 8,530.36-12,775.38-5,399.44

Finding the Fourth Proportional to 8,530.36, 12,775.38 and 5,399.44

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Solution

The fourth proportional to 8,530.36, 12,775.38 and 5,399.44 is: 8,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.36 : 12,775.38 = 5,399.44 : x
  2. Step 2: Convert to fraction form
    8,530.36/12,775.38 = 5,399.44/x
  3. Step 3: Cross multiply
    8,530.36x = 12,775.38 × 5,399.44
  4. Step 4: Simplify right side
    8,530.36x = 68,979,897.79
  5. Step 5: Solve for x
    x = 68,979,897.79/8,530.36
  6. Step 6: Final answer
    x = 8,086.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.