Home / 13,743.45-20,565.90-11,900.88

Finding the Fourth Proportional to 13,743.45, 20,565.90 and 11,900.88

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Solution

The fourth proportional to 13,743.45, 20,565.90 and 11,900.88 is: 17,808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.45 : 20,565.90 = 11,900.88 : x
  2. Step 2: Convert to fraction form
    13,743.45/20,565.90 = 11,900.88/x
  3. Step 3: Cross multiply
    13,743.45x = 20,565.90 × 11,900.88
  4. Step 4: Simplify right side
    13,743.45x = 244,752,307.99
  5. Step 5: Solve for x
    x = 244,752,307.99/13,743.45
  6. Step 6: Final answer
    x = 17,808.65

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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.