Home / 12,210.80-18,317.04-10,760

Finding the Fourth Proportional to 12,210.80, 18,317.04 and 10,760

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Solution

The fourth proportional to 12,210.80, 18,317.04 and 10,760 is: 16,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.80 : 18,317.04 = 10,760 : x
  2. Step 2: Convert to fraction form
    12,210.80/18,317.04 = 10,760/x
  3. Step 3: Cross multiply
    12,210.80x = 18,317.04 × 10,760
  4. Step 4: Simplify right side
    12,210.80x = 197,091,350.40
  5. Step 5: Solve for x
    x = 197,091,350.40/12,210.80
  6. Step 6: Final answer
    x = 16,140.74

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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.