Home / 13,266.52-19,900.08-3,405.82

Finding the Fourth Proportional to 13,266.52, 19,900.08 and 3,405.82

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Solution

The fourth proportional to 13,266.52, 19,900.08 and 3,405.82 is: 5,108.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.52 : 19,900.08 = 3,405.82 : x
  2. Step 2: Convert to fraction form
    13,266.52/19,900.08 = 3,405.82/x
  3. Step 3: Cross multiply
    13,266.52x = 19,900.08 × 3,405.82
  4. Step 4: Simplify right side
    13,266.52x = 67,776,090.47
  5. Step 5: Solve for x
    x = 67,776,090.47/13,266.52
  6. Step 6: Final answer
    x = 5,108.81

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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.