Home / 12,214.31-18,309.16-4,815.91

Finding the Fourth Proportional to 12,214.31, 18,309.16 and 4,815.91

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Solution

The fourth proportional to 12,214.31, 18,309.16 and 4,815.91 is: 7,219.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.31 : 18,309.16 = 4,815.91 : x
  2. Step 2: Convert to fraction form
    12,214.31/18,309.16 = 4,815.91/x
  3. Step 3: Cross multiply
    12,214.31x = 18,309.16 × 4,815.91
  4. Step 4: Simplify right side
    12,214.31x = 88,175,242.66
  5. Step 5: Solve for x
    x = 88,175,242.66/12,214.31
  6. Step 6: Final answer
    x = 7,219.01

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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.