Home / 10,932.84-15,080.58-7,790.04

Finding the Fourth Proportional to 10,932.84, 15,080.58 and 7,790.04

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Solution

The fourth proportional to 10,932.84, 15,080.58 and 7,790.04 is: 10,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,932.84 : 15,080.58 = 7,790.04 : x
  2. Step 2: Convert to fraction form
    10,932.84/15,080.58 = 7,790.04/x
  3. Step 3: Cross multiply
    10,932.84x = 15,080.58 × 7,790.04
  4. Step 4: Simplify right side
    10,932.84x = 117,478,321.42
  5. Step 5: Solve for x
    x = 117,478,321.42/10,932.84
  6. Step 6: Final answer
    x = 10,745.45

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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.