Home / 14,068.77-19,405.69-8,399.09

Finding the Fourth Proportional to 14,068.77, 19,405.69 and 8,399.09

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Solution

The fourth proportional to 14,068.77, 19,405.69 and 8,399.09 is: 11,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,068.77 : 19,405.69 = 8,399.09 : x
  2. Step 2: Convert to fraction form
    14,068.77/19,405.69 = 8,399.09/x
  3. Step 3: Cross multiply
    14,068.77x = 19,405.69 × 8,399.09
  4. Step 4: Simplify right side
    14,068.77x = 162,990,211.58
  5. Step 5: Solve for x
    x = 162,990,211.58/14,068.77
  6. Step 6: Final answer
    x = 11,585.25

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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.