Home / 14,283.91-19,711.78-8,319.61

Finding the Fourth Proportional to 14,283.91, 19,711.78 and 8,319.61

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Solution

The fourth proportional to 14,283.91, 19,711.78 and 8,319.61 is: 11,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,283.91 : 19,711.78 = 8,319.61 : x
  2. Step 2: Convert to fraction form
    14,283.91/19,711.78 = 8,319.61/x
  3. Step 3: Cross multiply
    14,283.91x = 19,711.78 × 8,319.61
  4. Step 4: Simplify right side
    14,283.91x = 163,994,322.01
  5. Step 5: Solve for x
    x = 163,994,322.01/14,283.91
  6. Step 6: Final answer
    x = 11,481.05

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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.