Home / 12,636.15-17,436.96-7,329.95

Finding the Fourth Proportional to 12,636.15, 17,436.96 and 7,329.95

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Solution

The fourth proportional to 12,636.15, 17,436.96 and 7,329.95 is: 10,114.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.15 : 17,436.96 = 7,329.95 : x
  2. Step 2: Convert to fraction form
    12,636.15/17,436.96 = 7,329.95/x
  3. Step 3: Cross multiply
    12,636.15x = 17,436.96 × 7,329.95
  4. Step 4: Simplify right side
    12,636.15x = 127,811,957.77
  5. Step 5: Solve for x
    x = 127,811,957.77/12,636.15
  6. Step 6: Final answer
    x = 10,114.79

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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.