Home / 19,456.16-26,860.56-12,851.36

Finding the Fourth Proportional to 19,456.16, 26,860.56 and 12,851.36

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Solution

The fourth proportional to 19,456.16, 26,860.56 and 12,851.36 is: 17,742.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,456.16 : 26,860.56 = 12,851.36 : x
  2. Step 2: Convert to fraction form
    19,456.16/26,860.56 = 12,851.36/x
  3. Step 3: Cross multiply
    19,456.16x = 26,860.56 × 12,851.36
  4. Step 4: Simplify right side
    19,456.16x = 345,194,726.36
  5. Step 5: Solve for x
    x = 345,194,726.36/19,456.16
  6. Step 6: Final answer
    x = 17,742.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.