Home / 14,121.70-21,181.16-8,573.56

Finding the Fourth Proportional to 14,121.70, 21,181.16 and 8,573.56

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Solution

The fourth proportional to 14,121.70, 21,181.16 and 8,573.56 is: 12,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.70 : 21,181.16 = 8,573.56 : x
  2. Step 2: Convert to fraction form
    14,121.70/21,181.16 = 8,573.56/x
  3. Step 3: Cross multiply
    14,121.70x = 21,181.16 × 8,573.56
  4. Step 4: Simplify right side
    14,121.70x = 181,597,946.13
  5. Step 5: Solve for x
    x = 181,597,946.13/14,121.70
  6. Step 6: Final answer
    x = 12,859.50

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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.