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Finding the Fourth Proportional to 13,329.65, 19,965.71 and 6,299.05

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Solution

The fourth proportional to 13,329.65, 19,965.71 and 6,299.05 is: 9,434.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.65 : 19,965.71 = 6,299.05 : x
  2. Step 2: Convert to fraction form
    13,329.65/19,965.71 = 6,299.05/x
  3. Step 3: Cross multiply
    13,329.65x = 19,965.71 × 6,299.05
  4. Step 4: Simplify right side
    13,329.65x = 125,765,005.58
  5. Step 5: Solve for x
    x = 125,765,005.58/13,329.65
  6. Step 6: Final answer
    x = 9,434.99

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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.