Home / 13,817.40-20,723.70-5,047.80

Finding the Fourth Proportional to 13,817.40, 20,723.70 and 5,047.80

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Solution

The fourth proportional to 13,817.40, 20,723.70 and 5,047.80 is: 7,570.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.40 : 20,723.70 = 5,047.80 : x
  2. Step 2: Convert to fraction form
    13,817.40/20,723.70 = 5,047.80/x
  3. Step 3: Cross multiply
    13,817.40x = 20,723.70 × 5,047.80
  4. Step 4: Simplify right side
    13,817.40x = 104,609,092.86
  5. Step 5: Solve for x
    x = 104,609,092.86/13,817.40
  6. Step 6: Final answer
    x = 7,570.82

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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.