Home / 19,994.79-29,982.12-6,663.06

Finding the Fourth Proportional to 19,994.79, 29,982.12 and 6,663.06

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Solution

The fourth proportional to 19,994.79, 29,982.12 and 6,663.06 is: 9,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.79 : 29,982.12 = 6,663.06 : x
  2. Step 2: Convert to fraction form
    19,994.79/29,982.12 = 6,663.06/x
  3. Step 3: Cross multiply
    19,994.79x = 29,982.12 × 6,663.06
  4. Step 4: Simplify right side
    19,994.79x = 199,772,639.50
  5. Step 5: Solve for x
    x = 199,772,639.50/19,994.79
  6. Step 6: Final answer
    x = 9,991.24

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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.