Home / 18,527.78-25,580.14-12,165.67

Finding the Fourth Proportional to 18,527.78, 25,580.14 and 12,165.67

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Solution

The fourth proportional to 18,527.78, 25,580.14 and 12,165.67 is: 16,796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,527.78 : 25,580.14 = 12,165.67 : x
  2. Step 2: Convert to fraction form
    18,527.78/25,580.14 = 12,165.67/x
  3. Step 3: Cross multiply
    18,527.78x = 25,580.14 × 12,165.67
  4. Step 4: Simplify right side
    18,527.78x = 311,199,414.25
  5. Step 5: Solve for x
    x = 311,199,414.25/18,527.78
  6. Step 6: Final answer
    x = 16,796.37

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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.