Home / 12,872.44-19,275.56-8,918.06

Finding the Fourth Proportional to 12,872.44, 19,275.56 and 8,918.06

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Solution

The fourth proportional to 12,872.44, 19,275.56 and 8,918.06 is: 13,354.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872.44 : 19,275.56 = 8,918.06 : x
  2. Step 2: Convert to fraction form
    12,872.44/19,275.56 = 8,918.06/x
  3. Step 3: Cross multiply
    12,872.44x = 19,275.56 × 8,918.06
  4. Step 4: Simplify right side
    12,872.44x = 171,900,556.02
  5. Step 5: Solve for x
    x = 171,900,556.02/12,872.44
  6. Step 6: Final answer
    x = 13,354.16

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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.