Home / 12,113.52-16,695-8,795.76

Finding the Fourth Proportional to 12,113.52, 16,695 and 8,795.76

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Solution

The fourth proportional to 12,113.52, 16,695 and 8,795.76 is: 12,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.52 : 16,695 = 8,795.76 : x
  2. Step 2: Convert to fraction form
    12,113.52/16,695 = 8,795.76/x
  3. Step 3: Cross multiply
    12,113.52x = 16,695 × 8,795.76
  4. Step 4: Simplify right side
    12,113.52x = 146,845,213.20
  5. Step 5: Solve for x
    x = 146,845,213.20/12,113.52
  6. Step 6: Final answer
    x = 12,122.42

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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.