Home / 12,559.72-18,838.12-3,326.44

Finding the Fourth Proportional to 12,559.72, 18,838.12 and 3,326.44

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Solution

The fourth proportional to 12,559.72, 18,838.12 and 3,326.44 is: 4,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.72 : 18,838.12 = 3,326.44 : x
  2. Step 2: Convert to fraction form
    12,559.72/18,838.12 = 3,326.44/x
  3. Step 3: Cross multiply
    12,559.72x = 18,838.12 × 3,326.44
  4. Step 4: Simplify right side
    12,559.72x = 62,663,875.89
  5. Step 5: Solve for x
    x = 62,663,875.89/12,559.72
  6. Step 6: Final answer
    x = 4,989.27

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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.