Home / 10,721.16-16,091.57-5,459.81

Finding the Fourth Proportional to 10,721.16, 16,091.57 and 5,459.81

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Solution

The fourth proportional to 10,721.16, 16,091.57 and 5,459.81 is: 8,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.16 : 16,091.57 = 5,459.81 : x
  2. Step 2: Convert to fraction form
    10,721.16/16,091.57 = 5,459.81/x
  3. Step 3: Cross multiply
    10,721.16x = 16,091.57 × 5,459.81
  4. Step 4: Simplify right side
    10,721.16x = 87,856,807.04
  5. Step 5: Solve for x
    x = 87,856,807.04/10,721.16
  6. Step 6: Final answer
    x = 8,194.71

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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.