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Finding the Fourth Proportional to 8,597.98, 12,897.41 and 2,678.91

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Solution

The fourth proportional to 8,597.98, 12,897.41 and 2,678.91 is: 4,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.98 : 12,897.41 = 2,678.91 : x
  2. Step 2: Convert to fraction form
    8,597.98/12,897.41 = 2,678.91/x
  3. Step 3: Cross multiply
    8,597.98x = 12,897.41 × 2,678.91
  4. Step 4: Simplify right side
    8,597.98x = 34,551,000.62
  5. Step 5: Solve for x
    x = 34,551,000.62/8,597.98
  6. Step 6: Final answer
    x = 4,018.50

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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.