Home / 11,190.53-15,443.28-6,155.28

Finding the Fourth Proportional to 11,190.53, 15,443.28 and 6,155.28

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Solution

The fourth proportional to 11,190.53, 15,443.28 and 6,155.28 is: 8,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.53 : 15,443.28 = 6,155.28 : x
  2. Step 2: Convert to fraction form
    11,190.53/15,443.28 = 6,155.28/x
  3. Step 3: Cross multiply
    11,190.53x = 15,443.28 × 6,155.28
  4. Step 4: Simplify right side
    11,190.53x = 95,057,712.52
  5. Step 5: Solve for x
    x = 95,057,712.52/11,190.53
  6. Step 6: Final answer
    x = 8,494.48

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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.