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Finding the Fourth Proportional to 8,784, 13,164.52 and 7,670.62

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Solution

The fourth proportional to 8,784, 13,164.52 and 7,670.62 is: 11,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784 : 13,164.52 = 7,670.62 : x
  2. Step 2: Convert to fraction form
    8,784/13,164.52 = 7,670.62/x
  3. Step 3: Cross multiply
    8,784x = 13,164.52 × 7,670.62
  4. Step 4: Simplify right side
    8,784x = 100,980,030.40
  5. Step 5: Solve for x
    x = 100,980,030.40/8,784
  6. Step 6: Final answer
    x = 11,495.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.