Home / 10,179.54-15,246.75-7,822.19

Finding the Fourth Proportional to 10,179.54, 15,246.75 and 7,822.19

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Solution

The fourth proportional to 10,179.54, 15,246.75 and 7,822.19 is: 11,715.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.54 : 15,246.75 = 7,822.19 : x
  2. Step 2: Convert to fraction form
    10,179.54/15,246.75 = 7,822.19/x
  3. Step 3: Cross multiply
    10,179.54x = 15,246.75 × 7,822.19
  4. Step 4: Simplify right side
    10,179.54x = 119,262,975.38
  5. Step 5: Solve for x
    x = 119,262,975.38/10,179.54
  6. Step 6: Final answer
    x = 11,715.95

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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.