Home / 13,541.23-20,312.39-4,180.42

Finding the Fourth Proportional to 13,541.23, 20,312.39 and 4,180.42

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Solution

The fourth proportional to 13,541.23, 20,312.39 and 4,180.42 is: 6,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.23 : 20,312.39 = 4,180.42 : x
  2. Step 2: Convert to fraction form
    13,541.23/20,312.39 = 4,180.42/x
  3. Step 3: Cross multiply
    13,541.23x = 20,312.39 × 4,180.42
  4. Step 4: Simplify right side
    13,541.23x = 84,914,321.40
  5. Step 5: Solve for x
    x = 84,914,321.40/13,541.23
  6. Step 6: Final answer
    x = 6,270.80

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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.