Home / 13,549.40-20,326.05-4,190.19

Finding the Fourth Proportional to 13,549.40, 20,326.05 and 4,190.19

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Solution

The fourth proportional to 13,549.40, 20,326.05 and 4,190.19 is: 6,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.40 : 20,326.05 = 4,190.19 : x
  2. Step 2: Convert to fraction form
    13,549.40/20,326.05 = 4,190.19/x
  3. Step 3: Cross multiply
    13,549.40x = 20,326.05 × 4,190.19
  4. Step 4: Simplify right side
    13,549.40x = 85,169,909.82
  5. Step 5: Solve for x
    x = 85,169,909.82/13,549.40
  6. Step 6: Final answer
    x = 6,285.88

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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.