Home / 11,522.45-15,901.78-6,487.09

Finding the Fourth Proportional to 11,522.45, 15,901.78 and 6,487.09

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Solution

The fourth proportional to 11,522.45, 15,901.78 and 6,487.09 is: 8,952.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,522.45 : 15,901.78 = 6,487.09 : x
  2. Step 2: Convert to fraction form
    11,522.45/15,901.78 = 6,487.09/x
  3. Step 3: Cross multiply
    11,522.45x = 15,901.78 × 6,487.09
  4. Step 4: Simplify right side
    11,522.45x = 103,156,278.02
  5. Step 5: Solve for x
    x = 103,156,278.02/11,522.45
  6. Step 6: Final answer
    x = 8,952.63

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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.