Home / 13,265.15-19,890.87-3,903.95

Finding the Fourth Proportional to 13,265.15, 19,890.87 and 3,903.95

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Solution

The fourth proportional to 13,265.15, 19,890.87 and 3,903.95 is: 5,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.15 : 19,890.87 = 3,903.95 : x
  2. Step 2: Convert to fraction form
    13,265.15/19,890.87 = 3,903.95/x
  3. Step 3: Cross multiply
    13,265.15x = 19,890.87 × 3,903.95
  4. Step 4: Simplify right side
    13,265.15x = 77,652,862.48
  5. Step 5: Solve for x
    x = 77,652,862.48/13,265.15
  6. Step 6: Final answer
    x = 5,853.90

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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.