Home / 11,533.84-15,920.22-7,229.26

Finding the Fourth Proportional to 11,533.84, 15,920.22 and 7,229.26

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Solution

The fourth proportional to 11,533.84, 15,920.22 and 7,229.26 is: 9,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,533.84 : 15,920.22 = 7,229.26 : x
  2. Step 2: Convert to fraction form
    11,533.84/15,920.22 = 7,229.26/x
  3. Step 3: Cross multiply
    11,533.84x = 15,920.22 × 7,229.26
  4. Step 4: Simplify right side
    11,533.84x = 115,091,409.64
  5. Step 5: Solve for x
    x = 115,091,409.64/11,533.84
  6. Step 6: Final answer
    x = 9,978.59

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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.