Home / 13,548.90-20,325.56-4,186.74

Finding the Fourth Proportional to 13,548.90, 20,325.56 and 4,186.74

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Solution

The fourth proportional to 13,548.90, 20,325.56 and 4,186.74 is: 6,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.90 : 20,325.56 = 4,186.74 : x
  2. Step 2: Convert to fraction form
    13,548.90/20,325.56 = 4,186.74/x
  3. Step 3: Cross multiply
    13,548.90x = 20,325.56 × 4,186.74
  4. Step 4: Simplify right side
    13,548.90x = 85,097,737.92
  5. Step 5: Solve for x
    x = 85,097,737.92/13,548.90
  6. Step 6: Final answer
    x = 6,280.78

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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.