Home / 13,342.12-18,412.32-7,753.12

Finding the Fourth Proportional to 13,342.12, 18,412.32 and 7,753.12

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Solution

The fourth proportional to 13,342.12, 18,412.32 and 7,753.12 is: 10,699.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.12 : 18,412.32 = 7,753.12 : x
  2. Step 2: Convert to fraction form
    13,342.12/18,412.32 = 7,753.12/x
  3. Step 3: Cross multiply
    13,342.12x = 18,412.32 × 7,753.12
  4. Step 4: Simplify right side
    13,342.12x = 142,752,926.44
  5. Step 5: Solve for x
    x = 142,752,926.44/13,342.12
  6. Step 6: Final answer
    x = 10,699.42

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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.