Home / 12,441.10-18,617.80-7,763.31

Finding the Fourth Proportional to 12,441.10, 18,617.80 and 7,763.31

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Solution

The fourth proportional to 12,441.10, 18,617.80 and 7,763.31 is: 11,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.10 : 18,617.80 = 7,763.31 : x
  2. Step 2: Convert to fraction form
    12,441.10/18,617.80 = 7,763.31/x
  3. Step 3: Cross multiply
    12,441.10x = 18,617.80 × 7,763.31
  4. Step 4: Simplify right side
    12,441.10x = 144,535,748.07
  5. Step 5: Solve for x
    x = 144,535,748.07/12,441.10
  6. Step 6: Final answer
    x = 11,617.60

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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.