Home / 11,148.11-15,384.56-6,112.61

Finding the Fourth Proportional to 11,148.11, 15,384.56 and 6,112.61

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Solution

The fourth proportional to 11,148.11, 15,384.56 and 6,112.61 is: 8,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.11 : 15,384.56 = 6,112.61 : x
  2. Step 2: Convert to fraction form
    11,148.11/15,384.56 = 6,112.61/x
  3. Step 3: Cross multiply
    11,148.11x = 15,384.56 × 6,112.61
  4. Step 4: Simplify right side
    11,148.11x = 94,039,707.82
  5. Step 5: Solve for x
    x = 94,039,707.82/11,148.11
  6. Step 6: Final answer
    x = 8,435.49

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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.