Home / 11,164.14-15,406.38-6,448.32

Finding the Fourth Proportional to 11,164.14, 15,406.38 and 6,448.32

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Solution

The fourth proportional to 11,164.14, 15,406.38 and 6,448.32 is: 8,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.14 : 15,406.38 = 6,448.32 : x
  2. Step 2: Convert to fraction form
    11,164.14/15,406.38 = 6,448.32/x
  3. Step 3: Cross multiply
    11,164.14x = 15,406.38 × 6,448.32
  4. Step 4: Simplify right side
    11,164.14x = 99,345,268.28
  5. Step 5: Solve for x
    x = 99,345,268.28/11,164.14
  6. Step 6: Final answer
    x = 8,898.60

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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.