Home / 12,439.54-18,664.17-4,646.53

Finding the Fourth Proportional to 12,439.54, 18,664.17 and 4,646.53

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Solution

The fourth proportional to 12,439.54, 18,664.17 and 4,646.53 is: 6,971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.54 : 18,664.17 = 4,646.53 : x
  2. Step 2: Convert to fraction form
    12,439.54/18,664.17 = 4,646.53/x
  3. Step 3: Cross multiply
    12,439.54x = 18,664.17 × 4,646.53
  4. Step 4: Simplify right side
    12,439.54x = 86,723,625.83
  5. Step 5: Solve for x
    x = 86,723,625.83/12,439.54
  6. Step 6: Final answer
    x = 6,971.61

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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.