Home / 15,668.21-21,622.61-8,595.11

Finding the Fourth Proportional to 15,668.21, 21,622.61 and 8,595.11

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Solution

The fourth proportional to 15,668.21, 21,622.61 and 8,595.11 is: 11,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.21 : 21,622.61 = 8,595.11 : x
  2. Step 2: Convert to fraction form
    15,668.21/21,622.61 = 8,595.11/x
  3. Step 3: Cross multiply
    15,668.21x = 21,622.61 × 8,595.11
  4. Step 4: Simplify right side
    15,668.21x = 185,848,711.44
  5. Step 5: Solve for x
    x = 185,848,711.44/15,668.21
  6. Step 6: Final answer
    x = 11,861.52

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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.