Home / 13,956.50-19,245.18-8,920.94

Finding the Fourth Proportional to 13,956.50, 19,245.18 and 8,920.94

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Solution

The fourth proportional to 13,956.50, 19,245.18 and 8,920.94 is: 12,301.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.50 : 19,245.18 = 8,920.94 : x
  2. Step 2: Convert to fraction form
    13,956.50/19,245.18 = 8,920.94/x
  3. Step 3: Cross multiply
    13,956.50x = 19,245.18 × 8,920.94
  4. Step 4: Simplify right side
    13,956.50x = 171,684,999.84
  5. Step 5: Solve for x
    x = 171,684,999.84/13,956.50
  6. Step 6: Final answer
    x = 12,301.44

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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.