Home / 13,261.56-19,890.86-3,401.07

Finding the Fourth Proportional to 13,261.56, 19,890.86 and 3,401.07

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Solution

The fourth proportional to 13,261.56, 19,890.86 and 3,401.07 is: 5,101.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.56 : 19,890.86 = 3,401.07 : x
  2. Step 2: Convert to fraction form
    13,261.56/19,890.86 = 3,401.07/x
  3. Step 3: Cross multiply
    13,261.56x = 19,890.86 × 3,401.07
  4. Step 4: Simplify right side
    13,261.56x = 67,650,277.56
  5. Step 5: Solve for x
    x = 67,650,277.56/13,261.56
  6. Step 6: Final answer
    x = 5,101.23

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1.5x scale

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.