Home / 15,234.70-21,023.93-8,520.44

Finding the Fourth Proportional to 15,234.70, 21,023.93 and 8,520.44

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Solution

The fourth proportional to 15,234.70, 21,023.93 and 8,520.44 is: 11,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234.70 : 21,023.93 = 8,520.44 : x
  2. Step 2: Convert to fraction form
    15,234.70/21,023.93 = 8,520.44/x
  3. Step 3: Cross multiply
    15,234.70x = 21,023.93 × 8,520.44
  4. Step 4: Simplify right side
    15,234.70x = 179,133,081.57
  5. Step 5: Solve for x
    x = 179,133,081.57/15,234.70
  6. Step 6: Final answer
    x = 11,758.23

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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.