Home / 12,856.50-19,286.28-4,534.79

Finding the Fourth Proportional to 12,856.50, 19,286.28 and 4,534.79

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Solution

The fourth proportional to 12,856.50, 19,286.28 and 4,534.79 is: 6,802.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,856.50 : 19,286.28 = 4,534.79 : x
  2. Step 2: Convert to fraction form
    12,856.50/19,286.28 = 4,534.79/x
  3. Step 3: Cross multiply
    12,856.50x = 19,286.28 × 4,534.79
  4. Step 4: Simplify right side
    12,856.50x = 87,459,229.68
  5. Step 5: Solve for x
    x = 87,459,229.68/12,856.50
  6. Step 6: Final answer
    x = 6,802.72

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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.