Home / 19,969.68-27,557.12-11,465.89

Finding the Fourth Proportional to 19,969.68, 27,557.12 and 11,465.89

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Solution

The fourth proportional to 19,969.68, 27,557.12 and 11,465.89 is: 15,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,969.68 : 27,557.12 = 11,465.89 : x
  2. Step 2: Convert to fraction form
    19,969.68/27,557.12 = 11,465.89/x
  3. Step 3: Cross multiply
    19,969.68x = 27,557.12 × 11,465.89
  4. Step 4: Simplify right side
    19,969.68x = 315,966,906.64
  5. Step 5: Solve for x
    x = 315,966,906.64/19,969.68
  6. Step 6: Final answer
    x = 15,822.33

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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.