Home / 12,458.72-18,686.64-3,225.44

Finding the Fourth Proportional to 12,458.72, 18,686.64 and 3,225.44

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Solution

The fourth proportional to 12,458.72, 18,686.64 and 3,225.44 is: 4,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.72 : 18,686.64 = 3,225.44 : x
  2. Step 2: Convert to fraction form
    12,458.72/18,686.64 = 3,225.44/x
  3. Step 3: Cross multiply
    12,458.72x = 18,686.64 × 3,225.44
  4. Step 4: Simplify right side
    12,458.72x = 60,272,636.12
  5. Step 5: Solve for x
    x = 60,272,636.12/12,458.72
  6. Step 6: Final answer
    x = 4,837.79

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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.