Home / 12,077.10-18,115.78-3,312.02

Finding the Fourth Proportional to 12,077.10, 18,115.78 and 3,312.02

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Solution

The fourth proportional to 12,077.10, 18,115.78 and 3,312.02 is: 4,968.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.10 : 18,115.78 = 3,312.02 : x
  2. Step 2: Convert to fraction form
    12,077.10/18,115.78 = 3,312.02/x
  3. Step 3: Cross multiply
    12,077.10x = 18,115.78 × 3,312.02
  4. Step 4: Simplify right side
    12,077.10x = 59,999,825.68
  5. Step 5: Solve for x
    x = 59,999,825.68/12,077.10
  6. Step 6: Final answer
    x = 4,968.07

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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.