Home / 12,470.84-18,709.14-3,705.56

Finding the Fourth Proportional to 12,470.84, 18,709.14 and 3,705.56

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Solution

The fourth proportional to 12,470.84, 18,709.14 and 3,705.56 is: 5,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.84 : 18,709.14 = 3,705.56 : x
  2. Step 2: Convert to fraction form
    12,470.84/18,709.14 = 3,705.56/x
  3. Step 3: Cross multiply
    12,470.84x = 18,709.14 × 3,705.56
  4. Step 4: Simplify right side
    12,470.84x = 69,327,840.82
  5. Step 5: Solve for x
    x = 69,327,840.82/12,470.84
  6. Step 6: Final answer
    x = 5,559.20

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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.