Home / 13,156.28-19,734.42-5,365.70

Finding the Fourth Proportional to 13,156.28, 19,734.42 and 5,365.70

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Solution

The fourth proportional to 13,156.28, 19,734.42 and 5,365.70 is: 8,048.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.28 : 19,734.42 = 5,365.70 : x
  2. Step 2: Convert to fraction form
    13,156.28/19,734.42 = 5,365.70/x
  3. Step 3: Cross multiply
    13,156.28x = 19,734.42 × 5,365.70
  4. Step 4: Simplify right side
    13,156.28x = 105,888,977.39
  5. Step 5: Solve for x
    x = 105,888,977.39/13,156.28
  6. Step 6: Final answer
    x = 8,048.55

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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.