Home / 9,143.02-12,610.62-6,311.26

Finding the Fourth Proportional to 9,143.02, 12,610.62 and 6,311.26

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Solution

The fourth proportional to 9,143.02, 12,610.62 and 6,311.26 is: 8,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.02 : 12,610.62 = 6,311.26 : x
  2. Step 2: Convert to fraction form
    9,143.02/12,610.62 = 6,311.26/x
  3. Step 3: Cross multiply
    9,143.02x = 12,610.62 × 6,311.26
  4. Step 4: Simplify right side
    9,143.02x = 79,588,917.34
  5. Step 5: Solve for x
    x = 79,588,917.34/9,143.02
  6. Step 6: Final answer
    x = 8,704.88

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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.