Home / 13,265.98-19,892.10-3,904.78

Finding the Fourth Proportional to 13,265.98, 19,892.10 and 3,904.78

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Solution

The fourth proportional to 13,265.98, 19,892.10 and 3,904.78 is: 5,855.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.98 : 19,892.10 = 3,904.78 : x
  2. Step 2: Convert to fraction form
    13,265.98/19,892.10 = 3,904.78/x
  3. Step 3: Cross multiply
    13,265.98x = 19,892.10 × 3,904.78
  4. Step 4: Simplify right side
    13,265.98x = 77,674,274.24
  5. Step 5: Solve for x
    x = 77,674,274.24/13,265.98
  6. Step 6: Final answer
    x = 5,855.15

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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.