Home / 14,700.89-20,286.65-7,986.36

Finding the Fourth Proportional to 14,700.89, 20,286.65 and 7,986.36

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Solution

The fourth proportional to 14,700.89, 20,286.65 and 7,986.36 is: 11,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,700.89 : 20,286.65 = 7,986.36 : x
  2. Step 2: Convert to fraction form
    14,700.89/20,286.65 = 7,986.36/x
  3. Step 3: Cross multiply
    14,700.89x = 20,286.65 × 7,986.36
  4. Step 4: Simplify right side
    14,700.89x = 162,016,450.16
  5. Step 5: Solve for x
    x = 162,016,450.16/14,700.89
  6. Step 6: Final answer
    x = 11,020.86

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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.