Home / 13,899.48-19,181.37-7,612.44

Finding the Fourth Proportional to 13,899.48, 19,181.37 and 7,612.44

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Solution

The fourth proportional to 13,899.48, 19,181.37 and 7,612.44 is: 10,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.48 : 19,181.37 = 7,612.44 : x
  2. Step 2: Convert to fraction form
    13,899.48/19,181.37 = 7,612.44/x
  3. Step 3: Cross multiply
    13,899.48x = 19,181.37 × 7,612.44
  4. Step 4: Simplify right side
    13,899.48x = 146,017,028.24
  5. Step 5: Solve for x
    x = 146,017,028.24/13,899.48
  6. Step 6: Final answer
    x = 10,505.22

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Double scale
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Similar ratio
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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.