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Finding the Fourth Proportional to 8,684.55, 13,005.86 and 4,975.52

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Solution

The fourth proportional to 8,684.55, 13,005.86 and 4,975.52 is: 7,451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.55 : 13,005.86 = 4,975.52 : x
  2. Step 2: Convert to fraction form
    8,684.55/13,005.86 = 4,975.52/x
  3. Step 3: Cross multiply
    8,684.55x = 13,005.86 × 4,975.52
  4. Step 4: Simplify right side
    8,684.55x = 64,710,826.64
  5. Step 5: Solve for x
    x = 64,710,826.64/8,684.55
  6. Step 6: Final answer
    x = 7,451.26

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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.