Home / 12,518.20-18,772.14-4,196.44

Finding the Fourth Proportional to 12,518.20, 18,772.14 and 4,196.44

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Solution

The fourth proportional to 12,518.20, 18,772.14 and 4,196.44 is: 6,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.20 : 18,772.14 = 4,196.44 : x
  2. Step 2: Convert to fraction form
    12,518.20/18,772.14 = 4,196.44/x
  3. Step 3: Cross multiply
    12,518.20x = 18,772.14 × 4,196.44
  4. Step 4: Simplify right side
    12,518.20x = 78,776,159.18
  5. Step 5: Solve for x
    x = 78,776,159.18/12,518.20
  6. Step 6: Final answer
    x = 6,292.93

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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.