Home / 10,929.46-15,080.34-6,949.12

Finding the Fourth Proportional to 10,929.46, 15,080.34 and 6,949.12

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Solution

The fourth proportional to 10,929.46, 15,080.34 and 6,949.12 is: 9,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.46 : 15,080.34 = 6,949.12 : x
  2. Step 2: Convert to fraction form
    10,929.46/15,080.34 = 6,949.12/x
  3. Step 3: Cross multiply
    10,929.46x = 15,080.34 × 6,949.12
  4. Step 4: Simplify right side
    10,929.46x = 104,795,092.30
  5. Step 5: Solve for x
    x = 104,795,092.30/10,929.46
  6. Step 6: Final answer
    x = 9,588.31

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1.5x scale

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.