Home / 11,175.02-15,420.40-6,396.22

Finding the Fourth Proportional to 11,175.02, 15,420.40 and 6,396.22

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Solution

The fourth proportional to 11,175.02, 15,420.40 and 6,396.22 is: 8,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.02 : 15,420.40 = 6,396.22 : x
  2. Step 2: Convert to fraction form
    11,175.02/15,420.40 = 6,396.22/x
  3. Step 3: Cross multiply
    11,175.02x = 15,420.40 × 6,396.22
  4. Step 4: Simplify right side
    11,175.02x = 98,632,270.89
  5. Step 5: Solve for x
    x = 98,632,270.89/11,175.02
  6. Step 6: Final answer
    x = 8,826.14

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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.