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Finding the Fourth Proportional to 12,307.88, 18,461.82 and 3,073.88

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Solution

The fourth proportional to 12,307.88, 18,461.82 and 3,073.88 is: 4,610.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.88 : 18,461.82 = 3,073.88 : x
  2. Step 2: Convert to fraction form
    12,307.88/18,461.82 = 3,073.88/x
  3. Step 3: Cross multiply
    12,307.88x = 18,461.82 × 3,073.88
  4. Step 4: Simplify right side
    12,307.88x = 56,749,326.95
  5. Step 5: Solve for x
    x = 56,749,326.95/12,307.88
  6. Step 6: Final answer
    x = 4,610.81

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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.