Home / 8,630.74-12,946.65-2,787.58

Finding the Fourth Proportional to 8,630.74, 12,946.65 and 2,787.58

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Solution

The fourth proportional to 8,630.74, 12,946.65 and 2,787.58 is: 4,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.74 : 12,946.65 = 2,787.58 : x
  2. Step 2: Convert to fraction form
    8,630.74/12,946.65 = 2,787.58/x
  3. Step 3: Cross multiply
    8,630.74x = 12,946.65 × 2,787.58
  4. Step 4: Simplify right side
    8,630.74x = 36,089,822.61
  5. Step 5: Solve for x
    x = 36,089,822.61/8,630.74
  6. Step 6: Final answer
    x = 4,181.54

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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.