Home / 13,264.98-19,890.61-3,903.78

Finding the Fourth Proportional to 13,264.98, 19,890.61 and 3,903.78

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Solution

The fourth proportional to 13,264.98, 19,890.61 and 3,903.78 is: 5,853.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,264.98 : 19,890.61 = 3,903.78 : x
  2. Step 2: Convert to fraction form
    13,264.98/19,890.61 = 3,903.78/x
  3. Step 3: Cross multiply
    13,264.98x = 19,890.61 × 3,903.78
  4. Step 4: Simplify right side
    13,264.98x = 77,648,446.53
  5. Step 5: Solve for x
    x = 77,648,446.53/13,264.98
  6. Step 6: Final answer
    x = 5,853.64

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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.