Home / 11,190.30-15,435.81-8,050.74

Finding the Fourth Proportional to 11,190.30, 15,435.81 and 8,050.74

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Solution

The fourth proportional to 11,190.30, 15,435.81 and 8,050.74 is: 11,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.30 : 15,435.81 = 8,050.74 : x
  2. Step 2: Convert to fraction form
    11,190.30/15,435.81 = 8,050.74/x
  3. Step 3: Cross multiply
    11,190.30x = 15,435.81 × 8,050.74
  4. Step 4: Simplify right side
    11,190.30x = 124,269,693.00
  5. Step 5: Solve for x
    x = 124,269,693.00/11,190.30
  6. Step 6: Final answer
    x = 11,105.13

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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.