Home / 10,935.71-16,401.89-5,387.51

Finding the Fourth Proportional to 10,935.71, 16,401.89 and 5,387.51

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Solution

The fourth proportional to 10,935.71, 16,401.89 and 5,387.51 is: 8,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.71 : 16,401.89 = 5,387.51 : x
  2. Step 2: Convert to fraction form
    10,935.71/16,401.89 = 5,387.51/x
  3. Step 3: Cross multiply
    10,935.71x = 16,401.89 × 5,387.51
  4. Step 4: Simplify right side
    10,935.71x = 88,365,400.87
  5. Step 5: Solve for x
    x = 88,365,400.87/10,935.71
  6. Step 6: Final answer
    x = 8,080.45

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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.