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Finding the Fourth Proportional to 8,389.46, 12,587.16 and 4,694.88

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Solution

The fourth proportional to 8,389.46, 12,587.16 and 4,694.88 is: 7,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.46 : 12,587.16 = 4,694.88 : x
  2. Step 2: Convert to fraction form
    8,389.46/12,587.16 = 4,694.88/x
  3. Step 3: Cross multiply
    8,389.46x = 12,587.16 × 4,694.88
  4. Step 4: Simplify right side
    8,389.46x = 59,095,205.74
  5. Step 5: Solve for x
    x = 59,095,205.74/8,389.46
  6. Step 6: Final answer
    x = 7,043.98

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