Home / 15,674.50-21,630.81-9,390.52

Finding the Fourth Proportional to 15,674.50, 21,630.81 and 9,390.52

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Solution

The fourth proportional to 15,674.50, 21,630.81 and 9,390.52 is: 12,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,674.50 : 21,630.81 = 9,390.52 : x
  2. Step 2: Convert to fraction form
    15,674.50/21,630.81 = 9,390.52/x
  3. Step 3: Cross multiply
    15,674.50x = 21,630.81 × 9,390.52
  4. Step 4: Simplify right side
    15,674.50x = 203,124,553.92
  5. Step 5: Solve for x
    x = 203,124,553.92/15,674.50
  6. Step 6: Final answer
    x = 12,958.92

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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.