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Finding the Fourth Proportional to 8,707.93, 13,055.19 and 4,321.98

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Solution

The fourth proportional to 8,707.93, 13,055.19 and 4,321.98 is: 6,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.93 : 13,055.19 = 4,321.98 : x
  2. Step 2: Convert to fraction form
    8,707.93/13,055.19 = 4,321.98/x
  3. Step 3: Cross multiply
    8,707.93x = 13,055.19 × 4,321.98
  4. Step 4: Simplify right side
    8,707.93x = 56,424,270.08
  5. Step 5: Solve for x
    x = 56,424,270.08/8,707.93
  6. Step 6: Final answer
    x = 6,479.64

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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.