Home / 11,187.36-15,438.89-6,151.32

Finding the Fourth Proportional to 11,187.36, 15,438.89 and 6,151.32

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Solution

The fourth proportional to 11,187.36, 15,438.89 and 6,151.32 is: 8,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.36 : 15,438.89 = 6,151.32 : x
  2. Step 2: Convert to fraction form
    11,187.36/15,438.89 = 6,151.32/x
  3. Step 3: Cross multiply
    11,187.36x = 15,438.89 × 6,151.32
  4. Step 4: Simplify right side
    11,187.36x = 94,969,568.21
  5. Step 5: Solve for x
    x = 94,969,568.21/11,187.36
  6. Step 6: Final answer
    x = 8,489.01

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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.