Home / 10,670.13-15,997.26-5,118.18

Finding the Fourth Proportional to 10,670.13, 15,997.26 and 5,118.18

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Solution

The fourth proportional to 10,670.13, 15,997.26 and 5,118.18 is: 7,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,670.13 : 15,997.26 = 5,118.18 : x
  2. Step 2: Convert to fraction form
    10,670.13/15,997.26 = 5,118.18/x
  3. Step 3: Cross multiply
    10,670.13x = 15,997.26 × 5,118.18
  4. Step 4: Simplify right side
    10,670.13x = 81,876,935.37
  5. Step 5: Solve for x
    x = 81,876,935.37/10,670.13
  6. Step 6: Final answer
    x = 7,673.47

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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.