Home / 14,359.25-19,815.57-8,071.64

Finding the Fourth Proportional to 14,359.25, 19,815.57 and 8,071.64

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Solution

The fourth proportional to 14,359.25, 19,815.57 and 8,071.64 is: 11,138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,359.25 : 19,815.57 = 8,071.64 : x
  2. Step 2: Convert to fraction form
    14,359.25/19,815.57 = 8,071.64/x
  3. Step 3: Cross multiply
    14,359.25x = 19,815.57 × 8,071.64
  4. Step 4: Simplify right side
    14,359.25x = 159,944,147.43
  5. Step 5: Solve for x
    x = 159,944,147.43/14,359.25
  6. Step 6: Final answer
    x = 11,138.75

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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.