Home / 14,956.79-20,638.94-8,242.70

Finding the Fourth Proportional to 14,956.79, 20,638.94 and 8,242.70

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Solution

The fourth proportional to 14,956.79, 20,638.94 and 8,242.70 is: 11,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,956.79 : 20,638.94 = 8,242.70 : x
  2. Step 2: Convert to fraction form
    14,956.79/20,638.94 = 8,242.70/x
  3. Step 3: Cross multiply
    14,956.79x = 20,638.94 × 8,242.70
  4. Step 4: Simplify right side
    14,956.79x = 170,120,446.33
  5. Step 5: Solve for x
    x = 170,120,446.33/14,956.79
  6. Step 6: Final answer
    x = 11,374.13

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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.