Home / 13,179.87-19,777.10-5,394.15

Finding the Fourth Proportional to 13,179.87, 19,777.10 and 5,394.15

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Solution

The fourth proportional to 13,179.87, 19,777.10 and 5,394.15 is: 8,094.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.87 : 19,777.10 = 5,394.15 : x
  2. Step 2: Convert to fraction form
    13,179.87/19,777.10 = 5,394.15/x
  3. Step 3: Cross multiply
    13,179.87x = 19,777.10 × 5,394.15
  4. Step 4: Simplify right side
    13,179.87x = 106,680,643.97
  5. Step 5: Solve for x
    x = 106,680,643.97/13,179.87
  6. Step 6: Final answer
    x = 8,094.21

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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.