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Finding the Fourth Proportional to 15,604, 21,533.52 and 8,983.84

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Solution

The fourth proportional to 15,604, 21,533.52 and 8,983.84 is: 12,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604 : 21,533.52 = 8,983.84 : x
  2. Step 2: Convert to fraction form
    15,604/21,533.52 = 8,983.84/x
  3. Step 3: Cross multiply
    15,604x = 21,533.52 × 8,983.84
  4. Step 4: Simplify right side
    15,604x = 193,453,698.32
  5. Step 5: Solve for x
    x = 193,453,698.32/15,604
  6. Step 6: Final answer
    x = 12,397.70

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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.