Home / 19,647.36-27,119.08-12,842.37

Finding the Fourth Proportional to 19,647.36, 27,119.08 and 12,842.37

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Solution

The fourth proportional to 19,647.36, 27,119.08 and 12,842.37 is: 17,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.36 : 27,119.08 = 12,842.37 : x
  2. Step 2: Convert to fraction form
    19,647.36/27,119.08 = 12,842.37/x
  3. Step 3: Cross multiply
    19,647.36x = 27,119.08 × 12,842.37
  4. Step 4: Simplify right side
    19,647.36x = 348,273,059.61
  5. Step 5: Solve for x
    x = 348,273,059.61/19,647.36
  6. Step 6: Final answer
    x = 17,726.21

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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.