Home / 10,812.61-16,217.51-3,417.81

Finding the Fourth Proportional to 10,812.61, 16,217.51 and 3,417.81

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Solution

The fourth proportional to 10,812.61, 16,217.51 and 3,417.81 is: 5,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.61 : 16,217.51 = 3,417.81 : x
  2. Step 2: Convert to fraction form
    10,812.61/16,217.51 = 3,417.81/x
  3. Step 3: Cross multiply
    10,812.61x = 16,217.51 × 3,417.81
  4. Step 4: Simplify right side
    10,812.61x = 55,428,416.94
  5. Step 5: Solve for x
    x = 55,428,416.94/10,812.61
  6. Step 6: Final answer
    x = 5,126.28

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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.