Home / 10,971.75-16,457.78-4,727.87

Finding the Fourth Proportional to 10,971.75, 16,457.78 and 4,727.87

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Solution

The fourth proportional to 10,971.75, 16,457.78 and 4,727.87 is: 7,091.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.75 : 16,457.78 = 4,727.87 : x
  2. Step 2: Convert to fraction form
    10,971.75/16,457.78 = 4,727.87/x
  3. Step 3: Cross multiply
    10,971.75x = 16,457.78 × 4,727.87
  4. Step 4: Simplify right side
    10,971.75x = 77,810,235.58
  5. Step 5: Solve for x
    x = 77,810,235.58/10,971.75
  6. Step 6: Final answer
    x = 7,091.87

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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.