Home / 12,968.07-19,438.25-9,259.06

Finding the Fourth Proportional to 12,968.07, 19,438.25 and 9,259.06

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Solution

The fourth proportional to 12,968.07, 19,438.25 and 9,259.06 is: 13,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.07 : 19,438.25 = 9,259.06 : x
  2. Step 2: Convert to fraction form
    12,968.07/19,438.25 = 9,259.06/x
  3. Step 3: Cross multiply
    12,968.07x = 19,438.25 × 9,259.06
  4. Step 4: Simplify right side
    12,968.07x = 179,979,942.72
  5. Step 5: Solve for x
    x = 179,979,942.72/12,968.07
  6. Step 6: Final answer
    x = 13,878.69

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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.