Home / 19,669.14-27,135.69-12,958.29

Finding the Fourth Proportional to 19,669.14, 27,135.69 and 12,958.29

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Solution

The fourth proportional to 19,669.14, 27,135.69 and 12,958.29 is: 17,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.14 : 27,135.69 = 12,958.29 : x
  2. Step 2: Convert to fraction form
    19,669.14/27,135.69 = 12,958.29/x
  3. Step 3: Cross multiply
    19,669.14x = 27,135.69 × 12,958.29
  4. Step 4: Simplify right side
    19,669.14x = 351,632,140.37
  5. Step 5: Solve for x
    x = 351,632,140.37/19,669.14
  6. Step 6: Final answer
    x = 17,877.35

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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.