Home / 13,291.46-19,937.26-3,430.06

Finding the Fourth Proportional to 13,291.46, 19,937.26 and 3,430.06

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Solution

The fourth proportional to 13,291.46, 19,937.26 and 3,430.06 is: 5,145.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.46 : 19,937.26 = 3,430.06 : x
  2. Step 2: Convert to fraction form
    13,291.46/19,937.26 = 3,430.06/x
  3. Step 3: Cross multiply
    13,291.46x = 19,937.26 × 3,430.06
  4. Step 4: Simplify right side
    13,291.46x = 68,385,952.48
  5. Step 5: Solve for x
    x = 68,385,952.48/13,291.46
  6. Step 6: Final answer
    x = 5,145.11

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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.