Home / 14,615.48-20,170.68-8,329.88

Finding the Fourth Proportional to 14,615.48, 20,170.68 and 8,329.88

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Solution

The fourth proportional to 14,615.48, 20,170.68 and 8,329.88 is: 11,495.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.48 : 20,170.68 = 8,329.88 : x
  2. Step 2: Convert to fraction form
    14,615.48/20,170.68 = 8,329.88/x
  3. Step 3: Cross multiply
    14,615.48x = 20,170.68 × 8,329.88
  4. Step 4: Simplify right side
    14,615.48x = 168,019,343.92
  5. Step 5: Solve for x
    x = 168,019,343.92/14,615.48
  6. Step 6: Final answer
    x = 11,495.99

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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.