Home / 13,490.55-20,234.00-3,630.42

Finding the Fourth Proportional to 13,490.55, 20,234.00 and 3,630.42

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Solution

The fourth proportional to 13,490.55, 20,234.00 and 3,630.42 is: 5,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.55 : 20,234.00 = 3,630.42 : x
  2. Step 2: Convert to fraction form
    13,490.55/20,234.00 = 3,630.42/x
  3. Step 3: Cross multiply
    13,490.55x = 20,234.00 × 3,630.42
  4. Step 4: Simplify right side
    13,490.55x = 73,457,927.36
  5. Step 5: Solve for x
    x = 73,457,927.36/13,490.55
  6. Step 6: Final answer
    x = 5,445.14

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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.