Home / 10,270.80-14,149.14-9,770.54

Finding the Fourth Proportional to 10,270.80, 14,149.14 and 9,770.54

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Solution

The fourth proportional to 10,270.80, 14,149.14 and 9,770.54 is: 13,459.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,270.80 : 14,149.14 = 9,770.54 : x
  2. Step 2: Convert to fraction form
    10,270.80/14,149.14 = 9,770.54/x
  3. Step 3: Cross multiply
    10,270.80x = 14,149.14 × 9,770.54
  4. Step 4: Simplify right side
    10,270.80x = 138,244,667.59
  5. Step 5: Solve for x
    x = 138,244,667.59/10,270.80
  6. Step 6: Final answer
    x = 13,459.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.