Home / 9,259.74-13,890.78-3,420.42

Finding the Fourth Proportional to 9,259.74, 13,890.78 and 3,420.42

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Solution

The fourth proportional to 9,259.74, 13,890.78 and 3,420.42 is: 5,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,259.74 : 13,890.78 = 3,420.42 : x
  2. Step 2: Convert to fraction form
    9,259.74/13,890.78 = 3,420.42/x
  3. Step 3: Cross multiply
    9,259.74x = 13,890.78 × 3,420.42
  4. Step 4: Simplify right side
    9,259.74x = 47,512,301.73
  5. Step 5: Solve for x
    x = 47,512,301.73/9,259.74
  6. Step 6: Final answer
    x = 5,131.06

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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.