Home / 14,293.10-19,724.22-7,919.56

Finding the Fourth Proportional to 14,293.10, 19,724.22 and 7,919.56

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Solution

The fourth proportional to 14,293.10, 19,724.22 and 7,919.56 is: 10,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.10 : 19,724.22 = 7,919.56 : x
  2. Step 2: Convert to fraction form
    14,293.10/19,724.22 = 7,919.56/x
  3. Step 3: Cross multiply
    14,293.10x = 19,724.22 × 7,919.56
  4. Step 4: Simplify right side
    14,293.10x = 156,207,143.74
  5. Step 5: Solve for x
    x = 156,207,143.74/14,293.10
  6. Step 6: Final answer
    x = 10,928.85

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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.