Home / 19,967.68-27,564.25-12,897.55

Finding the Fourth Proportional to 19,967.68, 27,564.25 and 12,897.55

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Solution

The fourth proportional to 19,967.68, 27,564.25 and 12,897.55 is: 17,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.68 : 27,564.25 = 12,897.55 : x
  2. Step 2: Convert to fraction form
    19,967.68/27,564.25 = 12,897.55/x
  3. Step 3: Cross multiply
    19,967.68x = 27,564.25 × 12,897.55
  4. Step 4: Simplify right side
    19,967.68x = 355,511,292.59
  5. Step 5: Solve for x
    x = 355,511,292.59/19,967.68
  6. Step 6: Final answer
    x = 17,804.34

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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.