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Finding the Fourth Proportional to 15,898.49, 21,940.91 and 9,184.40

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Solution

The fourth proportional to 15,898.49, 21,940.91 and 9,184.40 is: 12,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.49 : 21,940.91 = 9,184.40 : x
  2. Step 2: Convert to fraction form
    15,898.49/21,940.91 = 9,184.40/x
  3. Step 3: Cross multiply
    15,898.49x = 21,940.91 × 9,184.40
  4. Step 4: Simplify right side
    15,898.49x = 201,514,093.80
  5. Step 5: Solve for x
    x = 201,514,093.80/15,898.49
  6. Step 6: Final answer
    x = 12,675.05

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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.