Home / 12,815.06-19,231.14-4,495.07

Finding the Fourth Proportional to 12,815.06, 19,231.14 and 4,495.07

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Solution

The fourth proportional to 12,815.06, 19,231.14 and 4,495.07 is: 6,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.06 : 19,231.14 = 4,495.07 : x
  2. Step 2: Convert to fraction form
    12,815.06/19,231.14 = 4,495.07/x
  3. Step 3: Cross multiply
    12,815.06x = 19,231.14 × 4,495.07
  4. Step 4: Simplify right side
    12,815.06x = 86,445,320.48
  5. Step 5: Solve for x
    x = 86,445,320.48/12,815.06
  6. Step 6: Final answer
    x = 6,745.60

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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.