Home / 15,155.06-20,913.96-8,441.27

Finding the Fourth Proportional to 15,155.06, 20,913.96 and 8,441.27

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Solution

The fourth proportional to 15,155.06, 20,913.96 and 8,441.27 is: 11,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155.06 : 20,913.96 = 8,441.27 : x
  2. Step 2: Convert to fraction form
    15,155.06/20,913.96 = 8,441.27/x
  3. Step 3: Cross multiply
    15,155.06x = 20,913.96 × 8,441.27
  4. Step 4: Simplify right side
    15,155.06x = 176,540,383.13
  5. Step 5: Solve for x
    x = 176,540,383.13/15,155.06
  6. Step 6: Final answer
    x = 11,648.94

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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.