Home / 11,353.92-15,668.28-6,318.12

Finding the Fourth Proportional to 11,353.92, 15,668.28 and 6,318.12

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Solution

The fourth proportional to 11,353.92, 15,668.28 and 6,318.12 is: 8,718.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,353.92 : 15,668.28 = 6,318.12 : x
  2. Step 2: Convert to fraction form
    11,353.92/15,668.28 = 6,318.12/x
  3. Step 3: Cross multiply
    11,353.92x = 15,668.28 × 6,318.12
  4. Step 4: Simplify right side
    11,353.92x = 98,994,073.23
  5. Step 5: Solve for x
    x = 98,994,073.23/11,353.92
  6. Step 6: Final answer
    x = 8,718.93

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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.