Home / 13,967.18-19,278.88-9,190.81

Finding the Fourth Proportional to 13,967.18, 19,278.88 and 9,190.81

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Solution

The fourth proportional to 13,967.18, 19,278.88 and 9,190.81 is: 12,686.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967.18 : 19,278.88 = 9,190.81 : x
  2. Step 2: Convert to fraction form
    13,967.18/19,278.88 = 9,190.81/x
  3. Step 3: Cross multiply
    13,967.18x = 19,278.88 × 9,190.81
  4. Step 4: Simplify right side
    13,967.18x = 177,188,469.99
  5. Step 5: Solve for x
    x = 177,188,469.99/13,967.18
  6. Step 6: Final answer
    x = 12,686.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.