Home / 13,943.30-20,904.01-6,543.95

Finding the Fourth Proportional to 13,943.30, 20,904.01 and 6,543.95

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Solution

The fourth proportional to 13,943.30, 20,904.01 and 6,543.95 is: 9,810.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.30 : 20,904.01 = 6,543.95 : x
  2. Step 2: Convert to fraction form
    13,943.30/20,904.01 = 6,543.95/x
  3. Step 3: Cross multiply
    13,943.30x = 20,904.01 × 6,543.95
  4. Step 4: Simplify right side
    13,943.30x = 136,794,675.36
  5. Step 5: Solve for x
    x = 136,794,675.36/13,943.30
  6. Step 6: Final answer
    x = 9,810.79

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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.