Home / 8,355.36-12,536.28-3,427.32

Finding the Fourth Proportional to 8,355.36, 12,536.28 and 3,427.32

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Solution

The fourth proportional to 8,355.36, 12,536.28 and 3,427.32 is: 5,142.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.36 : 12,536.28 = 3,427.32 : x
  2. Step 2: Convert to fraction form
    8,355.36/12,536.28 = 3,427.32/x
  3. Step 3: Cross multiply
    8,355.36x = 12,536.28 × 3,427.32
  4. Step 4: Simplify right side
    8,355.36x = 42,965,843.17
  5. Step 5: Solve for x
    x = 42,965,843.17/8,355.36
  6. Step 6: Final answer
    x = 5,142.31

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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.