Home / 8,126.79-12,192.02-2,580.32

Finding the Fourth Proportional to 8,126.79, 12,192.02 and 2,580.32

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Solution

The fourth proportional to 8,126.79, 12,192.02 and 2,580.32 is: 3,871.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.79 : 12,192.02 = 2,580.32 : x
  2. Step 2: Convert to fraction form
    8,126.79/12,192.02 = 2,580.32/x
  3. Step 3: Cross multiply
    8,126.79x = 12,192.02 × 2,580.32
  4. Step 4: Simplify right side
    8,126.79x = 31,459,269.66
  5. Step 5: Solve for x
    x = 31,459,269.66/8,126.79
  6. Step 6: Final answer
    x = 3,871.06

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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.