Home / 15,193.38-20,968.29-8,479.62

Finding the Fourth Proportional to 15,193.38, 20,968.29 and 8,479.62

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Solution

The fourth proportional to 15,193.38, 20,968.29 and 8,479.62 is: 11,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.38 : 20,968.29 = 8,479.62 : x
  2. Step 2: Convert to fraction form
    15,193.38/20,968.29 = 8,479.62/x
  3. Step 3: Cross multiply
    15,193.38x = 20,968.29 × 8,479.62
  4. Step 4: Simplify right side
    15,193.38x = 177,803,131.25
  5. Step 5: Solve for x
    x = 177,803,131.25/15,193.38
  6. Step 6: Final answer
    x = 11,702.67

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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.