Home / 14,653.79-20,222.22-7,939.37

Finding the Fourth Proportional to 14,653.79, 20,222.22 and 7,939.37

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Solution

The fourth proportional to 14,653.79, 20,222.22 and 7,939.37 is: 10,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.79 : 20,222.22 = 7,939.37 : x
  2. Step 2: Convert to fraction form
    14,653.79/20,222.22 = 7,939.37/x
  3. Step 3: Cross multiply
    14,653.79x = 20,222.22 × 7,939.37
  4. Step 4: Simplify right side
    14,653.79x = 160,551,686.80
  5. Step 5: Solve for x
    x = 160,551,686.80/14,653.79
  6. Step 6: Final answer
    x = 10,956.33

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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.