Home / 12,436.32-18,680.40-7,252.32

Finding the Fourth Proportional to 12,436.32, 18,680.40 and 7,252.32

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Solution

The fourth proportional to 12,436.32, 18,680.40 and 7,252.32 is: 10,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.32 : 18,680.40 = 7,252.32 : x
  2. Step 2: Convert to fraction form
    12,436.32/18,680.40 = 7,252.32/x
  3. Step 3: Cross multiply
    12,436.32x = 18,680.40 × 7,252.32
  4. Step 4: Simplify right side
    12,436.32x = 135,476,238.53
  5. Step 5: Solve for x
    x = 135,476,238.53/12,436.32
  6. Step 6: Final answer
    x = 10,893.60

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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.