Home / 13,803.90-20,712.00-7,228.55

Finding the Fourth Proportional to 13,803.90, 20,712.00 and 7,228.55

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Solution

The fourth proportional to 13,803.90, 20,712.00 and 7,228.55 is: 10,846.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.90 : 20,712.00 = 7,228.55 : x
  2. Step 2: Convert to fraction form
    13,803.90/20,712.00 = 7,228.55/x
  3. Step 3: Cross multiply
    13,803.90x = 20,712.00 × 7,228.55
  4. Step 4: Simplify right side
    13,803.90x = 149,717,649.32
  5. Step 5: Solve for x
    x = 149,717,649.32/13,803.90
  6. Step 6: Final answer
    x = 10,846.04

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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.