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Finding the Fourth Proportional to 8,701.50, 12,008.07 and 4,975.50

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Solution

The fourth proportional to 8,701.50, 12,008.07 and 4,975.50 is: 6,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.50 : 12,008.07 = 4,975.50 : x
  2. Step 2: Convert to fraction form
    8,701.50/12,008.07 = 4,975.50/x
  3. Step 3: Cross multiply
    8,701.50x = 12,008.07 × 4,975.50
  4. Step 4: Simplify right side
    8,701.50x = 59,746,152.29
  5. Step 5: Solve for x
    x = 59,746,152.29/8,701.50
  6. Step 6: Final answer
    x = 6,866.19

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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.