Home / 13,998.30-21,005.55-5,234.10

Finding the Fourth Proportional to 13,998.30, 21,005.55 and 5,234.10

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Solution

The fourth proportional to 13,998.30, 21,005.55 and 5,234.10 is: 7,854.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.30 : 21,005.55 = 5,234.10 : x
  2. Step 2: Convert to fraction form
    13,998.30/21,005.55 = 5,234.10/x
  3. Step 3: Cross multiply
    13,998.30x = 21,005.55 × 5,234.10
  4. Step 4: Simplify right side
    13,998.30x = 109,945,149.26
  5. Step 5: Solve for x
    x = 109,945,149.26/13,998.30
  6. Step 6: Final answer
    x = 7,854.18

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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.