Home / 19,221.05-26,526.96-11,666.79

Finding the Fourth Proportional to 19,221.05, 26,526.96 and 11,666.79

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Solution

The fourth proportional to 19,221.05, 26,526.96 and 11,666.79 is: 16,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.05 : 26,526.96 = 11,666.79 : x
  2. Step 2: Convert to fraction form
    19,221.05/26,526.96 = 11,666.79/x
  3. Step 3: Cross multiply
    19,221.05x = 26,526.96 × 11,666.79
  4. Step 4: Simplify right side
    19,221.05x = 309,484,413.32
  5. Step 5: Solve for x
    x = 309,484,413.32/19,221.05
  6. Step 6: Final answer
    x = 16,101.33

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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.