Home / 7,420.78-11,119.02-5,773.24

Finding the Fourth Proportional to 7,420.78, 11,119.02 and 5,773.24

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Solution

The fourth proportional to 7,420.78, 11,119.02 and 5,773.24 is: 8,650.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.78 : 11,119.02 = 5,773.24 : x
  2. Step 2: Convert to fraction form
    7,420.78/11,119.02 = 5,773.24/x
  3. Step 3: Cross multiply
    7,420.78x = 11,119.02 × 5,773.24
  4. Step 4: Simplify right side
    7,420.78x = 64,192,771.02
  5. Step 5: Solve for x
    x = 64,192,771.02/7,420.78
  6. Step 6: Final answer
    x = 8,650.41

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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.