Home / 8,284.56-12,427.64-3,089.20

Finding the Fourth Proportional to 8,284.56, 12,427.64 and 3,089.20

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Solution

The fourth proportional to 8,284.56, 12,427.64 and 3,089.20 is: 4,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.56 : 12,427.64 = 3,089.20 : x
  2. Step 2: Convert to fraction form
    8,284.56/12,427.64 = 3,089.20/x
  3. Step 3: Cross multiply
    8,284.56x = 12,427.64 × 3,089.20
  4. Step 4: Simplify right side
    8,284.56x = 38,391,465.49
  5. Step 5: Solve for x
    x = 38,391,465.49/8,284.56
  6. Step 6: Final answer
    x = 4,634.10

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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.