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Finding the Fourth Proportional to 12,675.88, 19,000.86 and 4,881.64

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Solution

The fourth proportional to 12,675.88, 19,000.86 and 4,881.64 is: 7,317.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.88 : 19,000.86 = 4,881.64 : x
  2. Step 2: Convert to fraction form
    12,675.88/19,000.86 = 4,881.64/x
  3. Step 3: Cross multiply
    12,675.88x = 19,000.86 × 4,881.64
  4. Step 4: Simplify right side
    12,675.88x = 92,755,358.21
  5. Step 5: Solve for x
    x = 92,755,358.21/12,675.88
  6. Step 6: Final answer
    x = 7,317.47

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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.