Home / 11,869.90-16,379.92-6,492.18

Finding the Fourth Proportional to 11,869.90, 16,379.92 and 6,492.18

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Solution

The fourth proportional to 11,869.90, 16,379.92 and 6,492.18 is: 8,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.90 : 16,379.92 = 6,492.18 : x
  2. Step 2: Convert to fraction form
    11,869.90/16,379.92 = 6,492.18/x
  3. Step 3: Cross multiply
    11,869.90x = 16,379.92 × 6,492.18
  4. Step 4: Simplify right side
    11,869.90x = 106,341,389.03
  5. Step 5: Solve for x
    x = 106,341,389.03/11,869.90
  6. Step 6: Final answer
    x = 8,958.91

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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.