Home / 12,815.07-19,222.73-4,495.29

Finding the Fourth Proportional to 12,815.07, 19,222.73 and 4,495.29

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Solution

The fourth proportional to 12,815.07, 19,222.73 and 4,495.29 is: 6,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.07 : 19,222.73 = 4,495.29 : x
  2. Step 2: Convert to fraction form
    12,815.07/19,222.73 = 4,495.29/x
  3. Step 3: Cross multiply
    12,815.07x = 19,222.73 × 4,495.29
  4. Step 4: Simplify right side
    12,815.07x = 86,411,745.94
  5. Step 5: Solve for x
    x = 86,411,745.94/12,815.07
  6. Step 6: Final answer
    x = 6,742.98

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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.