Home / 10,985.90-16,481-3,588.36

Finding the Fourth Proportional to 10,985.90, 16,481 and 3,588.36

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Solution

The fourth proportional to 10,985.90, 16,481 and 3,588.36 is: 5,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.90 : 16,481 = 3,588.36 : x
  2. Step 2: Convert to fraction form
    10,985.90/16,481 = 3,588.36/x
  3. Step 3: Cross multiply
    10,985.90x = 16,481 × 3,588.36
  4. Step 4: Simplify right side
    10,985.90x = 59,139,761.16
  5. Step 5: Solve for x
    x = 59,139,761.16/10,985.90
  6. Step 6: Final answer
    x = 5,383.24

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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.