Home / 16,985.31-25,467.99-5,135.51

Finding the Fourth Proportional to 16,985.31, 25,467.99 and 5,135.51

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Solution

The fourth proportional to 16,985.31, 25,467.99 and 5,135.51 is: 7,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.31 : 25,467.99 = 5,135.51 : x
  2. Step 2: Convert to fraction form
    16,985.31/25,467.99 = 5,135.51/x
  3. Step 3: Cross multiply
    16,985.31x = 25,467.99 × 5,135.51
  4. Step 4: Simplify right side
    16,985.31x = 130,791,161.74
  5. Step 5: Solve for x
    x = 130,791,161.74/16,985.31
  6. Step 6: Final answer
    x = 7,700.25

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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.