Home / 13,441.14-20,162.16-6,421.95

Finding the Fourth Proportional to 13,441.14, 20,162.16 and 6,421.95

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Solution

The fourth proportional to 13,441.14, 20,162.16 and 6,421.95 is: 9,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.14 : 20,162.16 = 6,421.95 : x
  2. Step 2: Convert to fraction form
    13,441.14/20,162.16 = 6,421.95/x
  3. Step 3: Cross multiply
    13,441.14x = 20,162.16 × 6,421.95
  4. Step 4: Simplify right side
    13,441.14x = 129,480,383.41
  5. Step 5: Solve for x
    x = 129,480,383.41/13,441.14
  6. Step 6: Final answer
    x = 9,633.14

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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.