Home / 11,505.24-15,878.79-6,726.60

Finding the Fourth Proportional to 11,505.24, 15,878.79 and 6,726.60

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Solution

The fourth proportional to 11,505.24, 15,878.79 and 6,726.60 is: 9,283.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.24 : 15,878.79 = 6,726.60 : x
  2. Step 2: Convert to fraction form
    11,505.24/15,878.79 = 6,726.60/x
  3. Step 3: Cross multiply
    11,505.24x = 15,878.79 × 6,726.60
  4. Step 4: Simplify right side
    11,505.24x = 106,810,268.81
  5. Step 5: Solve for x
    x = 106,810,268.81/11,505.24
  6. Step 6: Final answer
    x = 9,283.62

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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.