Home / 13,265.90-19,892-3,904.70

Finding the Fourth Proportional to 13,265.90, 19,892 and 3,904.70

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Solution

The fourth proportional to 13,265.90, 19,892 and 3,904.70 is: 5,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.90 : 19,892 = 3,904.70 : x
  2. Step 2: Convert to fraction form
    13,265.90/19,892 = 3,904.70/x
  3. Step 3: Cross multiply
    13,265.90x = 19,892 × 3,904.70
  4. Step 4: Simplify right side
    13,265.90x = 77,672,292.40
  5. Step 5: Solve for x
    x = 77,672,292.40/13,265.90
  6. Step 6: Final answer
    x = 5,855.03

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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.