Home / 11,173.36-15,420.46-6,393.74

Finding the Fourth Proportional to 11,173.36, 15,420.46 and 6,393.74

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Solution

The fourth proportional to 11,173.36, 15,420.46 and 6,393.74 is: 8,824.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.36 : 15,420.46 = 6,393.74 : x
  2. Step 2: Convert to fraction form
    11,173.36/15,420.46 = 6,393.74/x
  3. Step 3: Cross multiply
    11,173.36x = 15,420.46 × 6,393.74
  4. Step 4: Simplify right side
    11,173.36x = 98,594,411.92
  5. Step 5: Solve for x
    x = 98,594,411.92/11,173.36
  6. Step 6: Final answer
    x = 8,824.06

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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.