Home / 11,112.42-15,335.15-6,396.71

Finding the Fourth Proportional to 11,112.42, 15,335.15 and 6,396.71

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Solution

The fourth proportional to 11,112.42, 15,335.15 and 6,396.71 is: 8,827.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.42 : 15,335.15 = 6,396.71 : x
  2. Step 2: Convert to fraction form
    11,112.42/15,335.15 = 6,396.71/x
  3. Step 3: Cross multiply
    11,112.42x = 15,335.15 × 6,396.71
  4. Step 4: Simplify right side
    11,112.42x = 98,094,507.36
  5. Step 5: Solve for x
    x = 98,094,507.36/11,112.42
  6. Step 6: Final answer
    x = 8,827.47

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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.