Home / 11,150.48-15,385.48-6,612.32

Finding the Fourth Proportional to 11,150.48, 15,385.48 and 6,612.32

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Solution

The fourth proportional to 11,150.48, 15,385.48 and 6,612.32 is: 9,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.48 : 15,385.48 = 6,612.32 : x
  2. Step 2: Convert to fraction form
    11,150.48/15,385.48 = 6,612.32/x
  3. Step 3: Cross multiply
    11,150.48x = 15,385.48 × 6,612.32
  4. Step 4: Simplify right side
    11,150.48x = 101,733,717.11
  5. Step 5: Solve for x
    x = 101,733,717.11/11,150.48
  6. Step 6: Final answer
    x = 9,123.71

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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.