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Finding the Fourth Proportional to 8,617.98, 12,927.64 and 2,774.76

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Solution

The fourth proportional to 8,617.98, 12,927.64 and 2,774.76 is: 4,162.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.98 : 12,927.64 = 2,774.76 : x
  2. Step 2: Convert to fraction form
    8,617.98/12,927.64 = 2,774.76/x
  3. Step 3: Cross multiply
    8,617.98x = 12,927.64 × 2,774.76
  4. Step 4: Simplify right side
    8,617.98x = 35,871,098.37
  5. Step 5: Solve for x
    x = 35,871,098.37/8,617.98
  6. Step 6: Final answer
    x = 4,162.36

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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.