Home / 19,995.72-29,983.52-6,663.99

Finding the Fourth Proportional to 19,995.72, 29,983.52 and 6,663.99

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Solution

The fourth proportional to 19,995.72, 29,983.52 and 6,663.99 is: 9,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.72 : 29,983.52 = 6,663.99 : x
  2. Step 2: Convert to fraction form
    19,995.72/29,983.52 = 6,663.99/x
  3. Step 3: Cross multiply
    19,995.72x = 29,983.52 × 6,663.99
  4. Step 4: Simplify right side
    19,995.72x = 199,809,844.12
  5. Step 5: Solve for x
    x = 199,809,844.12/19,995.72
  6. Step 6: Final answer
    x = 9,992.63

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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.