Home / 11,249.58-15,528.51-9,150.06

Finding the Fourth Proportional to 11,249.58, 15,528.51 and 9,150.06

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Solution

The fourth proportional to 11,249.58, 15,528.51 and 9,150.06 is: 12,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.58 : 15,528.51 = 9,150.06 : x
  2. Step 2: Convert to fraction form
    11,249.58/15,528.51 = 9,150.06/x
  3. Step 3: Cross multiply
    11,249.58x = 15,528.51 × 9,150.06
  4. Step 4: Simplify right side
    11,249.58x = 142,086,798.21
  5. Step 5: Solve for x
    x = 142,086,798.21/11,249.58
  6. Step 6: Final answer
    x = 12,630.41

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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.