Home / 11,190.76-15,442.02-6,474.28

Finding the Fourth Proportional to 11,190.76, 15,442.02 and 6,474.28

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Solution

The fourth proportional to 11,190.76, 15,442.02 and 6,474.28 is: 8,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.76 : 15,442.02 = 6,474.28 : x
  2. Step 2: Convert to fraction form
    11,190.76/15,442.02 = 6,474.28/x
  3. Step 3: Cross multiply
    11,190.76x = 15,442.02 × 6,474.28
  4. Step 4: Simplify right side
    11,190.76x = 99,975,961.25
  5. Step 5: Solve for x
    x = 99,975,961.25/11,190.76
  6. Step 6: Final answer
    x = 8,933.80

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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.