Home / 8,742.02-13,110.21-3,475.28

Finding the Fourth Proportional to 8,742.02, 13,110.21 and 3,475.28

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Solution

The fourth proportional to 8,742.02, 13,110.21 and 3,475.28 is: 5,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.02 : 13,110.21 = 3,475.28 : x
  2. Step 2: Convert to fraction form
    8,742.02/13,110.21 = 3,475.28/x
  3. Step 3: Cross multiply
    8,742.02x = 13,110.21 × 3,475.28
  4. Step 4: Simplify right side
    8,742.02x = 45,561,648.96
  5. Step 5: Solve for x
    x = 45,561,648.96/8,742.02
  6. Step 6: Final answer
    x = 5,211.80

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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.