Home / 13,045.78-19,569.78-3,685.84

Finding the Fourth Proportional to 13,045.78, 19,569.78 and 3,685.84

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Solution

The fourth proportional to 13,045.78, 19,569.78 and 3,685.84 is: 5,529.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.78 : 19,569.78 = 3,685.84 : x
  2. Step 2: Convert to fraction form
    13,045.78/19,569.78 = 3,685.84/x
  3. Step 3: Cross multiply
    13,045.78x = 19,569.78 × 3,685.84
  4. Step 4: Simplify right side
    13,045.78x = 72,131,077.92
  5. Step 5: Solve for x
    x = 72,131,077.92/13,045.78
  6. Step 6: Final answer
    x = 5,529.07

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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.