Home / 19,669.37-27,135.95-12,958.25

Finding the Fourth Proportional to 19,669.37, 27,135.95 and 12,958.25

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Solution

The fourth proportional to 19,669.37, 27,135.95 and 12,958.25 is: 17,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.37 : 27,135.95 = 12,958.25 : x
  2. Step 2: Convert to fraction form
    19,669.37/27,135.95 = 12,958.25/x
  3. Step 3: Cross multiply
    19,669.37x = 27,135.95 × 12,958.25
  4. Step 4: Simplify right side
    19,669.37x = 351,634,223.62
  5. Step 5: Solve for x
    x = 351,634,223.62/19,669.37
  6. Step 6: Final answer
    x = 17,877.25

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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.