Home / 10,985.16-15,159.44-5,949.26

Finding the Fourth Proportional to 10,985.16, 15,159.44 and 5,949.26

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Solution

The fourth proportional to 10,985.16, 15,159.44 and 5,949.26 is: 8,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.16 : 15,159.44 = 5,949.26 : x
  2. Step 2: Convert to fraction form
    10,985.16/15,159.44 = 5,949.26/x
  3. Step 3: Cross multiply
    10,985.16x = 15,159.44 × 5,949.26
  4. Step 4: Simplify right side
    10,985.16x = 90,187,464.89
  5. Step 5: Solve for x
    x = 90,187,464.89/10,985.16
  6. Step 6: Final answer
    x = 8,209.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.