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Finding the Fourth Proportional to 15,944.81, 22,004.03 and 8,775.55

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Solution

The fourth proportional to 15,944.81, 22,004.03 and 8,775.55 is: 12,110.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,944.81 : 22,004.03 = 8,775.55 : x
  2. Step 2: Convert to fraction form
    15,944.81/22,004.03 = 8,775.55/x
  3. Step 3: Cross multiply
    15,944.81x = 22,004.03 × 8,775.55
  4. Step 4: Simplify right side
    15,944.81x = 193,097,432.40
  5. Step 5: Solve for x
    x = 193,097,432.40/15,944.81
  6. Step 6: Final answer
    x = 12,110.37

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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.