Home / 10,653.24-15,979.14-4,080.12

Finding the Fourth Proportional to 10,653.24, 15,979.14 and 4,080.12

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Solution

The fourth proportional to 10,653.24, 15,979.14 and 4,080.12 is: 6,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.24 : 15,979.14 = 4,080.12 : x
  2. Step 2: Convert to fraction form
    10,653.24/15,979.14 = 4,080.12/x
  3. Step 3: Cross multiply
    10,653.24x = 15,979.14 × 4,080.12
  4. Step 4: Simplify right side
    10,653.24x = 65,196,808.70
  5. Step 5: Solve for x
    x = 65,196,808.70/10,653.24
  6. Step 6: Final answer
    x = 6,119.90

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1.5x scale

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.