Home / 12,724.89-19,117.14-12,005.95

Finding the Fourth Proportional to 12,724.89, 19,117.14 and 12,005.95

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Solution

The fourth proportional to 12,724.89, 19,117.14 and 12,005.95 is: 18,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.89 : 19,117.14 = 12,005.95 : x
  2. Step 2: Convert to fraction form
    12,724.89/19,117.14 = 12,005.95/x
  3. Step 3: Cross multiply
    12,724.89x = 19,117.14 × 12,005.95
  4. Step 4: Simplify right side
    12,724.89x = 229,519,426.98
  5. Step 5: Solve for x
    x = 229,519,426.98/12,724.89
  6. Step 6: Final answer
    x = 18,037.05

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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.