Home / 10,135.04-15,186.56-6,664.64

Finding the Fourth Proportional to 10,135.04, 15,186.56 and 6,664.64

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Solution

The fourth proportional to 10,135.04, 15,186.56 and 6,664.64 is: 9,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.04 : 15,186.56 = 6,664.64 : x
  2. Step 2: Convert to fraction form
    10,135.04/15,186.56 = 6,664.64/x
  3. Step 3: Cross multiply
    10,135.04x = 15,186.56 × 6,664.64
  4. Step 4: Simplify right side
    10,135.04x = 101,212,955.24
  5. Step 5: Solve for x
    x = 101,212,955.24/10,135.04
  6. Step 6: Final answer
    x = 9,986.44

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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.