Home / 13,817.46-20,728.65-6,430.26

Finding the Fourth Proportional to 13,817.46, 20,728.65 and 6,430.26

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Solution

The fourth proportional to 13,817.46, 20,728.65 and 6,430.26 is: 9,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.46 : 20,728.65 = 6,430.26 : x
  2. Step 2: Convert to fraction form
    13,817.46/20,728.65 = 6,430.26/x
  3. Step 3: Cross multiply
    13,817.46x = 20,728.65 × 6,430.26
  4. Step 4: Simplify right side
    13,817.46x = 133,290,608.95
  5. Step 5: Solve for x
    x = 133,290,608.95/13,817.46
  6. Step 6: Final answer
    x = 9,646.53

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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.