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Finding the Fourth Proportional to 8,703.08, 12,018.26 and 8,236.98

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Solution

The fourth proportional to 8,703.08, 12,018.26 and 8,236.98 is: 11,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.08 : 12,018.26 = 8,236.98 : x
  2. Step 2: Convert to fraction form
    8,703.08/12,018.26 = 8,236.98/x
  3. Step 3: Cross multiply
    8,703.08x = 12,018.26 × 8,236.98
  4. Step 4: Simplify right side
    8,703.08x = 98,994,126.07
  5. Step 5: Solve for x
    x = 98,994,126.07/8,703.08
  6. Step 6: Final answer
    x = 11,374.61

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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.