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Finding the Fourth Proportional to 9,998.79, 15,005.61 and 3,764.94

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Solution

The fourth proportional to 9,998.79, 15,005.61 and 3,764.94 is: 5,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.79 : 15,005.61 = 3,764.94 : x
  2. Step 2: Convert to fraction form
    9,998.79/15,005.61 = 3,764.94/x
  3. Step 3: Cross multiply
    9,998.79x = 15,005.61 × 3,764.94
  4. Step 4: Simplify right side
    9,998.79x = 56,495,221.31
  5. Step 5: Solve for x
    x = 56,495,221.31/9,998.79
  6. Step 6: Final answer
    x = 5,650.21

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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.