Home / 11,200.77-15,453.90-7,224.21

Finding the Fourth Proportional to 11,200.77, 15,453.90 and 7,224.21

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Solution

The fourth proportional to 11,200.77, 15,453.90 and 7,224.21 is: 9,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,200.77 : 15,453.90 = 7,224.21 : x
  2. Step 2: Convert to fraction form
    11,200.77/15,453.90 = 7,224.21/x
  3. Step 3: Cross multiply
    11,200.77x = 15,453.90 × 7,224.21
  4. Step 4: Simplify right side
    11,200.77x = 111,642,218.92
  5. Step 5: Solve for x
    x = 111,642,218.92/11,200.77
  6. Step 6: Final answer
    x = 9,967.37

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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.