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Finding the Fourth Proportional to 15,294.84, 21,106.68 and 8,582.16

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Solution

The fourth proportional to 15,294.84, 21,106.68 and 8,582.16 is: 11,843.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.84 : 21,106.68 = 8,582.16 : x
  2. Step 2: Convert to fraction form
    15,294.84/21,106.68 = 8,582.16/x
  3. Step 3: Cross multiply
    15,294.84x = 21,106.68 × 8,582.16
  4. Step 4: Simplify right side
    15,294.84x = 181,140,904.83
  5. Step 5: Solve for x
    x = 181,140,904.83/15,294.84
  6. Step 6: Final answer
    x = 11,843.27

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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.