Home / 8,282.88-11,431.20-5,139.52

Finding the Fourth Proportional to 8,282.88, 11,431.20 and 5,139.52

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Solution

The fourth proportional to 8,282.88, 11,431.20 and 5,139.52 is: 7,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,282.88 : 11,431.20 = 5,139.52 : x
  2. Step 2: Convert to fraction form
    8,282.88/11,431.20 = 5,139.52/x
  3. Step 3: Cross multiply
    8,282.88x = 11,431.20 × 5,139.52
  4. Step 4: Simplify right side
    8,282.88x = 58,750,881.02
  5. Step 5: Solve for x
    x = 58,750,881.02/8,282.88
  6. Step 6: Final answer
    x = 7,093.05

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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.