Home / 14,229.73-19,636.66-7,856.79

Finding the Fourth Proportional to 14,229.73, 19,636.66 and 7,856.79

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Solution

The fourth proportional to 14,229.73, 19,636.66 and 7,856.79 is: 10,842.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,229.73 : 19,636.66 = 7,856.79 : x
  2. Step 2: Convert to fraction form
    14,229.73/19,636.66 = 7,856.79/x
  3. Step 3: Cross multiply
    14,229.73x = 19,636.66 × 7,856.79
  4. Step 4: Simplify right side
    14,229.73x = 154,281,113.92
  5. Step 5: Solve for x
    x = 154,281,113.92/14,229.73
  6. Step 6: Final answer
    x = 10,842.17

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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.