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Finding the Fourth Proportional to 19,755.98, 29,634.54 and 8,656.94

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Solution

The fourth proportional to 19,755.98, 29,634.54 and 8,656.94 is: 12,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,755.98 : 29,634.54 = 8,656.94 : x
  2. Step 2: Convert to fraction form
    19,755.98/29,634.54 = 8,656.94/x
  3. Step 3: Cross multiply
    19,755.98x = 29,634.54 × 8,656.94
  4. Step 4: Simplify right side
    19,755.98x = 256,544,434.71
  5. Step 5: Solve for x
    x = 256,544,434.71/19,755.98
  6. Step 6: Final answer
    x = 12,985.66

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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.