Home / 12,458.82-18,691.26-3,574.32

Finding the Fourth Proportional to 12,458.82, 18,691.26 and 3,574.32

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Solution

The fourth proportional to 12,458.82, 18,691.26 and 3,574.32 is: 5,362.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.82 : 18,691.26 = 3,574.32 : x
  2. Step 2: Convert to fraction form
    12,458.82/18,691.26 = 3,574.32/x
  3. Step 3: Cross multiply
    12,458.82x = 18,691.26 × 3,574.32
  4. Step 4: Simplify right side
    12,458.82x = 66,808,544.44
  5. Step 5: Solve for x
    x = 66,808,544.44/12,458.82
  6. Step 6: Final answer
    x = 5,362.35

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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.