Home / 10,979.81-15,152.16-5,944.04

Finding the Fourth Proportional to 10,979.81, 15,152.16 and 5,944.04

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Solution

The fourth proportional to 10,979.81, 15,152.16 and 5,944.04 is: 8,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.81 : 15,152.16 = 5,944.04 : x
  2. Step 2: Convert to fraction form
    10,979.81/15,152.16 = 5,944.04/x
  3. Step 3: Cross multiply
    10,979.81x = 15,152.16 × 5,944.04
  4. Step 4: Simplify right side
    10,979.81x = 90,065,045.13
  5. Step 5: Solve for x
    x = 90,065,045.13/10,979.81
  6. Step 6: Final answer
    x = 8,202.79

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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.