Home / 11,328.77-16,992.81-6,645.18

Finding the Fourth Proportional to 11,328.77, 16,992.81 and 6,645.18

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Solution

The fourth proportional to 11,328.77, 16,992.81 and 6,645.18 is: 9,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.77 : 16,992.81 = 6,645.18 : x
  2. Step 2: Convert to fraction form
    11,328.77/16,992.81 = 6,645.18/x
  3. Step 3: Cross multiply
    11,328.77x = 16,992.81 × 6,645.18
  4. Step 4: Simplify right side
    11,328.77x = 112,920,217.43
  5. Step 5: Solve for x
    x = 112,920,217.43/11,328.77
  6. Step 6: Final answer
    x = 9,967.57

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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.