Home / 13,758.75-20,637.63-3,897.99

Finding the Fourth Proportional to 13,758.75, 20,637.63 and 3,897.99

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Solution

The fourth proportional to 13,758.75, 20,637.63 and 3,897.99 is: 5,846.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.75 : 20,637.63 = 3,897.99 : x
  2. Step 2: Convert to fraction form
    13,758.75/20,637.63 = 3,897.99/x
  3. Step 3: Cross multiply
    13,758.75x = 20,637.63 × 3,897.99
  4. Step 4: Simplify right side
    13,758.75x = 80,445,275.36
  5. Step 5: Solve for x
    x = 80,445,275.36/13,758.75
  6. Step 6: Final answer
    x = 5,846.84

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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.