Home / 12,858.22-19,282.14-8,699.44

Finding the Fourth Proportional to 12,858.22, 19,282.14 and 8,699.44

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Solution

The fourth proportional to 12,858.22, 19,282.14 and 8,699.44 is: 13,045.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.22 : 19,282.14 = 8,699.44 : x
  2. Step 2: Convert to fraction form
    12,858.22/19,282.14 = 8,699.44/x
  3. Step 3: Cross multiply
    12,858.22x = 19,282.14 × 8,699.44
  4. Step 4: Simplify right side
    12,858.22x = 167,743,820.00
  5. Step 5: Solve for x
    x = 167,743,820.00/12,858.22
  6. Step 6: Final answer
    x = 13,045.65

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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.