Home / 13,759.89-20,633.54-4,398.09

Finding the Fourth Proportional to 13,759.89, 20,633.54 and 4,398.09

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Solution

The fourth proportional to 13,759.89, 20,633.54 and 4,398.09 is: 6,595.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759.89 : 20,633.54 = 4,398.09 : x
  2. Step 2: Convert to fraction form
    13,759.89/20,633.54 = 4,398.09/x
  3. Step 3: Cross multiply
    13,759.89x = 20,633.54 × 4,398.09
  4. Step 4: Simplify right side
    13,759.89x = 90,748,143.95
  5. Step 5: Solve for x
    x = 90,748,143.95/13,759.89
  6. Step 6: Final answer
    x = 6,595.12

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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.