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Finding the Fourth Proportional to 18,752, 25,899.02 and 12,773.30

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Solution

The fourth proportional to 18,752, 25,899.02 and 12,773.30 is: 17,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752 : 25,899.02 = 12,773.30 : x
  2. Step 2: Convert to fraction form
    18,752/25,899.02 = 12,773.30/x
  3. Step 3: Cross multiply
    18,752x = 25,899.02 × 12,773.30
  4. Step 4: Simplify right side
    18,752x = 330,815,952.17
  5. Step 5: Solve for x
    x = 330,815,952.17/18,752
  6. Step 6: Final answer
    x = 17,641.64

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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.