Home / 13,345.26-18,418.80-7,967.88

Finding the Fourth Proportional to 13,345.26, 18,418.80 and 7,967.88

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Solution

The fourth proportional to 13,345.26, 18,418.80 and 7,967.88 is: 10,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.26 : 18,418.80 = 7,967.88 : x
  2. Step 2: Convert to fraction form
    13,345.26/18,418.80 = 7,967.88/x
  3. Step 3: Cross multiply
    13,345.26x = 18,418.80 × 7,967.88
  4. Step 4: Simplify right side
    13,345.26x = 146,758,788.14
  5. Step 5: Solve for x
    x = 146,758,788.14/13,345.26
  6. Step 6: Final answer
    x = 10,997.07

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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.