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Finding the Fourth Proportional to 15,934.07, 21,988.11 and 8,860.34

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Solution

The fourth proportional to 15,934.07, 21,988.11 and 8,860.34 is: 12,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,934.07 : 21,988.11 = 8,860.34 : x
  2. Step 2: Convert to fraction form
    15,934.07/21,988.11 = 8,860.34/x
  3. Step 3: Cross multiply
    15,934.07x = 21,988.11 × 8,860.34
  4. Step 4: Simplify right side
    15,934.07x = 194,822,130.56
  5. Step 5: Solve for x
    x = 194,822,130.56/15,934.07
  6. Step 6: Final answer
    x = 12,226.77

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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.