Home / 10,811.46-16,139-9,499.26

Finding the Fourth Proportional to 10,811.46, 16,139 and 9,499.26

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Solution

The fourth proportional to 10,811.46, 16,139 and 9,499.26 is: 14,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.46 : 16,139 = 9,499.26 : x
  2. Step 2: Convert to fraction form
    10,811.46/16,139 = 9,499.26/x
  3. Step 3: Cross multiply
    10,811.46x = 16,139 × 9,499.26
  4. Step 4: Simplify right side
    10,811.46x = 153,308,557.14
  5. Step 5: Solve for x
    x = 153,308,557.14/10,811.46
  6. Step 6: Final answer
    x = 14,180.19

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.