Home / 14,642.28-20,205.90-8,354.34

Finding the Fourth Proportional to 14,642.28, 20,205.90 and 8,354.34

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Solution

The fourth proportional to 14,642.28, 20,205.90 and 8,354.34 is: 11,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.28 : 20,205.90 = 8,354.34 : x
  2. Step 2: Convert to fraction form
    14,642.28/20,205.90 = 8,354.34/x
  3. Step 3: Cross multiply
    14,642.28x = 20,205.90 × 8,354.34
  4. Step 4: Simplify right side
    14,642.28x = 168,806,958.61
  5. Step 5: Solve for x
    x = 168,806,958.61/14,642.28
  6. Step 6: Final answer
    x = 11,528.73

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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.