Home / 11,273.53-15,550.70-7,445.21

Finding the Fourth Proportional to 11,273.53, 15,550.70 and 7,445.21

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Solution

The fourth proportional to 11,273.53, 15,550.70 and 7,445.21 is: 10,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,273.53 : 15,550.70 = 7,445.21 : x
  2. Step 2: Convert to fraction form
    11,273.53/15,550.70 = 7,445.21/x
  3. Step 3: Cross multiply
    11,273.53x = 15,550.70 × 7,445.21
  4. Step 4: Simplify right side
    11,273.53x = 115,778,126.13
  5. Step 5: Solve for x
    x = 115,778,126.13/11,273.53
  6. Step 6: Final answer
    x = 10,269.91

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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.