Home / 15,380.70-21,222.53-9,006.96

Finding the Fourth Proportional to 15,380.70, 21,222.53 and 9,006.96

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Solution

The fourth proportional to 15,380.70, 21,222.53 and 9,006.96 is: 12,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.70 : 21,222.53 = 9,006.96 : x
  2. Step 2: Convert to fraction form
    15,380.70/21,222.53 = 9,006.96/x
  3. Step 3: Cross multiply
    15,380.70x = 21,222.53 × 9,006.96
  4. Step 4: Simplify right side
    15,380.70x = 191,150,433.77
  5. Step 5: Solve for x
    x = 191,150,433.77/15,380.70
  6. Step 6: Final answer
    x = 12,427.94

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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.