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Finding the Fourth Proportional to 14,775.95, 20,398.35 and 11,411.21

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Solution

The fourth proportional to 14,775.95, 20,398.35 and 11,411.21 is: 15,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.95 : 20,398.35 = 11,411.21 : x
  2. Step 2: Convert to fraction form
    14,775.95/20,398.35 = 11,411.21/x
  3. Step 3: Cross multiply
    14,775.95x = 20,398.35 × 11,411.21
  4. Step 4: Simplify right side
    14,775.95x = 232,769,855.50
  5. Step 5: Solve for x
    x = 232,769,855.50/14,775.95
  6. Step 6: Final answer
    x = 15,753.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.