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Finding the Fourth Proportional to 13,893.59, 19,173 and 7,520.05

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Solution

The fourth proportional to 13,893.59, 19,173 and 7,520.05 is: 10,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.59 : 19,173 = 7,520.05 : x
  2. Step 2: Convert to fraction form
    13,893.59/19,173 = 7,520.05/x
  3. Step 3: Cross multiply
    13,893.59x = 19,173 × 7,520.05
  4. Step 4: Simplify right side
    13,893.59x = 144,181,918.65
  5. Step 5: Solve for x
    x = 144,181,918.65/13,893.59
  6. Step 6: Final answer
    x = 10,377.59

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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.