Home / 12,214.45-18,309.16-4,815.91

Finding the Fourth Proportional to 12,214.45, 18,309.16 and 4,815.91

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Solution

The fourth proportional to 12,214.45, 18,309.16 and 4,815.91 is: 7,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.45 : 18,309.16 = 4,815.91 : x
  2. Step 2: Convert to fraction form
    12,214.45/18,309.16 = 4,815.91/x
  3. Step 3: Cross multiply
    12,214.45x = 18,309.16 × 4,815.91
  4. Step 4: Simplify right side
    12,214.45x = 88,175,266.74
  5. Step 5: Solve for x
    x = 88,175,266.74/12,214.45
  6. Step 6: Final answer
    x = 7,218.93

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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.