Home / 13,938.12-20,892.56-4,575.74

Finding the Fourth Proportional to 13,938.12, 20,892.56 and 4,575.74

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Solution

The fourth proportional to 13,938.12, 20,892.56 and 4,575.74 is: 6,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.12 : 20,892.56 = 4,575.74 : x
  2. Step 2: Convert to fraction form
    13,938.12/20,892.56 = 4,575.74/x
  3. Step 3: Cross multiply
    13,938.12x = 20,892.56 × 4,575.74
  4. Step 4: Simplify right side
    13,938.12x = 95,598,922.49
  5. Step 5: Solve for x
    x = 95,598,922.49/13,938.12
  6. Step 6: Final answer
    x = 6,858.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.