Home / 14,286.24-19,724.40-8,706.72

Finding the Fourth Proportional to 14,286.24, 19,724.40 and 8,706.72

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Solution

The fourth proportional to 14,286.24, 19,724.40 and 8,706.72 is: 12,021.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.24 : 19,724.40 = 8,706.72 : x
  2. Step 2: Convert to fraction form
    14,286.24/19,724.40 = 8,706.72/x
  3. Step 3: Cross multiply
    14,286.24x = 19,724.40 × 8,706.72
  4. Step 4: Simplify right side
    14,286.24x = 171,734,827.97
  5. Step 5: Solve for x
    x = 171,734,827.97/14,286.24
  6. Step 6: Final answer
    x = 12,021.00

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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.