Home / 19,123.86-28,653.39-11,712.84

Finding the Fourth Proportional to 19,123.86, 28,653.39 and 11,712.84

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Solution

The fourth proportional to 19,123.86, 28,653.39 and 11,712.84 is: 17,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.86 : 28,653.39 = 11,712.84 : x
  2. Step 2: Convert to fraction form
    19,123.86/28,653.39 = 11,712.84/x
  3. Step 3: Cross multiply
    19,123.86x = 28,653.39 × 11,712.84
  4. Step 4: Simplify right side
    19,123.86x = 335,612,572.53
  5. Step 5: Solve for x
    x = 335,612,572.53/19,123.86
  6. Step 6: Final answer
    x = 17,549.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.