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Finding the Fourth Proportional to 9,886.82, 14,828.56 and 4,338.68

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Solution

The fourth proportional to 9,886.82, 14,828.56 and 4,338.68 is: 6,507.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.82 : 14,828.56 = 4,338.68 : x
  2. Step 2: Convert to fraction form
    9,886.82/14,828.56 = 4,338.68/x
  3. Step 3: Cross multiply
    9,886.82x = 14,828.56 × 4,338.68
  4. Step 4: Simplify right side
    9,886.82x = 64,336,317.94
  5. Step 5: Solve for x
    x = 64,336,317.94/9,886.82
  6. Step 6: Final answer
    x = 6,507.28

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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.