Home / 21,165.50-29,207.08-11,734.07

Finding the Fourth Proportional to 21,165.50, 29,207.08 and 11,734.07

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Solution

The fourth proportional to 21,165.50, 29,207.08 and 11,734.07 is: 16,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.50 : 29,207.08 = 11,734.07 : x
  2. Step 2: Convert to fraction form
    21,165.50/29,207.08 = 11,734.07/x
  3. Step 3: Cross multiply
    21,165.50x = 29,207.08 × 11,734.07
  4. Step 4: Simplify right side
    21,165.50x = 342,717,789.85
  5. Step 5: Solve for x
    x = 342,717,789.85/21,165.50
  6. Step 6: Final answer
    x = 16,192.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.