Home / 11,705.87-16,154.10-6,400.69

Finding the Fourth Proportional to 11,705.87, 16,154.10 and 6,400.69

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Solution

The fourth proportional to 11,705.87, 16,154.10 and 6,400.69 is: 8,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705.87 : 16,154.10 = 6,400.69 : x
  2. Step 2: Convert to fraction form
    11,705.87/16,154.10 = 6,400.69/x
  3. Step 3: Cross multiply
    11,705.87x = 16,154.10 × 6,400.69
  4. Step 4: Simplify right side
    11,705.87x = 103,397,386.33
  5. Step 5: Solve for x
    x = 103,397,386.33/11,705.87
  6. Step 6: Final answer
    x = 8,832.95

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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.