Home / 10,811.53-14,912.80-7,454.49

Finding the Fourth Proportional to 10,811.53, 14,912.80 and 7,454.49

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Solution

The fourth proportional to 10,811.53, 14,912.80 and 7,454.49 is: 10,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.53 : 14,912.80 = 7,454.49 : x
  2. Step 2: Convert to fraction form
    10,811.53/14,912.80 = 7,454.49/x
  3. Step 3: Cross multiply
    10,811.53x = 14,912.80 × 7,454.49
  4. Step 4: Simplify right side
    10,811.53x = 111,167,318.47
  5. Step 5: Solve for x
    x = 111,167,318.47/10,811.53
  6. Step 6: Final answer
    x = 10,282.29

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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.