Home / 12,154.95-16,769.23-7,677

Finding the Fourth Proportional to 12,154.95, 16,769.23 and 7,677

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Solution

The fourth proportional to 12,154.95, 16,769.23 and 7,677 is: 10,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.95 : 16,769.23 = 7,677 : x
  2. Step 2: Convert to fraction form
    12,154.95/16,769.23 = 7,677/x
  3. Step 3: Cross multiply
    12,154.95x = 16,769.23 × 7,677
  4. Step 4: Simplify right side
    12,154.95x = 128,737,359.52
  5. Step 5: Solve for x
    x = 128,737,359.52/12,154.95
  6. Step 6: Final answer
    x = 10,591.35

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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.