Home / 13,845.66-20,774.58-7,270.32

Finding the Fourth Proportional to 13,845.66, 20,774.58 and 7,270.32

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Solution

The fourth proportional to 13,845.66, 20,774.58 and 7,270.32 is: 10,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.66 : 20,774.58 = 7,270.32 : x
  2. Step 2: Convert to fraction form
    13,845.66/20,774.58 = 7,270.32/x
  3. Step 3: Cross multiply
    13,845.66x = 20,774.58 × 7,270.32
  4. Step 4: Simplify right side
    13,845.66x = 151,037,844.47
  5. Step 5: Solve for x
    x = 151,037,844.47/13,845.66
  6. Step 6: Final answer
    x = 10,908.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.