Home / 11,110.50-15,334.35-6,393.90

Finding the Fourth Proportional to 11,110.50, 15,334.35 and 6,393.90

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Solution

The fourth proportional to 11,110.50, 15,334.35 and 6,393.90 is: 8,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.50 : 15,334.35 = 6,393.90 : x
  2. Step 2: Convert to fraction form
    11,110.50/15,334.35 = 6,393.90/x
  3. Step 3: Cross multiply
    11,110.50x = 15,334.35 × 6,393.90
  4. Step 4: Simplify right side
    11,110.50x = 98,046,300.47
  5. Step 5: Solve for x
    x = 98,046,300.47/11,110.50
  6. Step 6: Final answer
    x = 8,824.65

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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.