Home / 11,334.93-16,990.68-8,207.18

Finding the Fourth Proportional to 11,334.93, 16,990.68 and 8,207.18

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Solution

The fourth proportional to 11,334.93, 16,990.68 and 8,207.18 is: 12,302.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,334.93 : 16,990.68 = 8,207.18 : x
  2. Step 2: Convert to fraction form
    11,334.93/16,990.68 = 8,207.18/x
  3. Step 3: Cross multiply
    11,334.93x = 16,990.68 × 8,207.18
  4. Step 4: Simplify right side
    11,334.93x = 139,445,569.08
  5. Step 5: Solve for x
    x = 139,445,569.08/11,334.93
  6. Step 6: Final answer
    x = 12,302.29

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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.