Home / 11,985.32-17,963.86-5,403.80

Finding the Fourth Proportional to 11,985.32, 17,963.86 and 5,403.80

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Solution

The fourth proportional to 11,985.32, 17,963.86 and 5,403.80 is: 8,099.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.32 : 17,963.86 = 5,403.80 : x
  2. Step 2: Convert to fraction form
    11,985.32/17,963.86 = 5,403.80/x
  3. Step 3: Cross multiply
    11,985.32x = 17,963.86 × 5,403.80
  4. Step 4: Simplify right side
    11,985.32x = 97,073,106.67
  5. Step 5: Solve for x
    x = 97,073,106.67/11,985.32
  6. Step 6: Final answer
    x = 8,099.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.