Home / 10,920.70-16,381.04-4,346.94

Finding the Fourth Proportional to 10,920.70, 16,381.04 and 4,346.94

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Solution

The fourth proportional to 10,920.70, 16,381.04 and 4,346.94 is: 6,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.70 : 16,381.04 = 4,346.94 : x
  2. Step 2: Convert to fraction form
    10,920.70/16,381.04 = 4,346.94/x
  3. Step 3: Cross multiply
    10,920.70x = 16,381.04 × 4,346.94
  4. Step 4: Simplify right side
    10,920.70x = 71,207,398.02
  5. Step 5: Solve for x
    x = 71,207,398.02/10,920.70
  6. Step 6: Final answer
    x = 6,520.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.