Home / 10,979.19-15,151.14-5,943.31

Finding the Fourth Proportional to 10,979.19, 15,151.14 and 5,943.31

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Solution

The fourth proportional to 10,979.19, 15,151.14 and 5,943.31 is: 8,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.19 : 15,151.14 = 5,943.31 : x
  2. Step 2: Convert to fraction form
    10,979.19/15,151.14 = 5,943.31/x
  3. Step 3: Cross multiply
    10,979.19x = 15,151.14 × 5,943.31
  4. Step 4: Simplify right side
    10,979.19x = 90,047,884.00
  5. Step 5: Solve for x
    x = 90,047,884.00/10,979.19
  6. Step 6: Final answer
    x = 8,201.69

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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.