Home / 15,521.04-23,276.70-8,121.60

Finding the Fourth Proportional to 15,521.04, 23,276.70 and 8,121.60

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Solution

The fourth proportional to 15,521.04, 23,276.70 and 8,121.60 is: 12,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.04 : 23,276.70 = 8,121.60 : x
  2. Step 2: Convert to fraction form
    15,521.04/23,276.70 = 8,121.60/x
  3. Step 3: Cross multiply
    15,521.04x = 23,276.70 × 8,121.60
  4. Step 4: Simplify right side
    15,521.04x = 189,044,046.72
  5. Step 5: Solve for x
    x = 189,044,046.72/15,521.04
  6. Step 6: Final answer
    x = 12,179.86

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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.