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Finding the Fourth Proportional to 9,998.88, 14,994.48 and 3,423.84

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Solution

The fourth proportional to 9,998.88, 14,994.48 and 3,423.84 is: 5,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.88 : 14,994.48 = 3,423.84 : x
  2. Step 2: Convert to fraction form
    9,998.88/14,994.48 = 3,423.84/x
  3. Step 3: Cross multiply
    9,998.88x = 14,994.48 × 3,423.84
  4. Step 4: Simplify right side
    9,998.88x = 51,338,700.40
  5. Step 5: Solve for x
    x = 51,338,700.40/9,998.88
  6. Step 6: Final answer
    x = 5,134.45

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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.