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Finding the Fourth Proportional to 6,663.98, 9,992.48 and 1,983.35

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Solution

The fourth proportional to 6,663.98, 9,992.48 and 1,983.35 is: 2,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.98 : 9,992.48 = 1,983.35 : x
  2. Step 2: Convert to fraction form
    6,663.98/9,992.48 = 1,983.35/x
  3. Step 3: Cross multiply
    6,663.98x = 9,992.48 × 1,983.35
  4. Step 4: Simplify right side
    6,663.98x = 19,818,525.33
  5. Step 5: Solve for x
    x = 19,818,525.33/6,663.98
  6. Step 6: Final answer
    x = 2,973.98

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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.