Home / 12,607.65-18,907.41-4,172.58

Finding the Fourth Proportional to 12,607.65, 18,907.41 and 4,172.58

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Solution

The fourth proportional to 12,607.65, 18,907.41 and 4,172.58 is: 6,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.65 : 18,907.41 = 4,172.58 : x
  2. Step 2: Convert to fraction form
    12,607.65/18,907.41 = 4,172.58/x
  3. Step 3: Cross multiply
    12,607.65x = 18,907.41 × 4,172.58
  4. Step 4: Simplify right side
    12,607.65x = 78,892,680.82
  5. Step 5: Solve for x
    x = 78,892,680.82/12,607.65
  6. Step 6: Final answer
    x = 6,257.52

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1.5x scale

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.