Home / 10,270.81-14,149.13-9,770.53

Finding the Fourth Proportional to 10,270.81, 14,149.13 and 9,770.53

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Solution

The fourth proportional to 10,270.81, 14,149.13 and 9,770.53 is: 13,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,270.81 : 14,149.13 = 9,770.53 : x
  2. Step 2: Convert to fraction form
    10,270.81/14,149.13 = 9,770.53/x
  3. Step 3: Cross multiply
    10,270.81x = 14,149.13 × 9,770.53
  4. Step 4: Simplify right side
    10,270.81x = 138,244,499.14
  5. Step 5: Solve for x
    x = 138,244,499.14/10,270.81
  6. Step 6: Final answer
    x = 13,459.94

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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.