Home / 11,190.83-15,444.14-7,407.41

Finding the Fourth Proportional to 11,190.83, 15,444.14 and 7,407.41

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Solution

The fourth proportional to 11,190.83, 15,444.14 and 7,407.41 is: 10,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.83 : 15,444.14 = 7,407.41 : x
  2. Step 2: Convert to fraction form
    11,190.83/15,444.14 = 7,407.41/x
  3. Step 3: Cross multiply
    11,190.83x = 15,444.14 × 7,407.41
  4. Step 4: Simplify right side
    11,190.83x = 114,400,962.82
  5. Step 5: Solve for x
    x = 114,400,962.82/11,190.83
  6. Step 6: Final answer
    x = 10,222.75

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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.