Home / 19,216.19-28,817.35-8,123.74

Finding the Fourth Proportional to 19,216.19, 28,817.35 and 8,123.74

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Solution

The fourth proportional to 19,216.19, 28,817.35 and 8,123.74 is: 12,182.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,216.19 : 28,817.35 = 8,123.74 : x
  2. Step 2: Convert to fraction form
    19,216.19/28,817.35 = 8,123.74/x
  3. Step 3: Cross multiply
    19,216.19x = 28,817.35 × 8,123.74
  4. Step 4: Simplify right side
    19,216.19x = 234,104,774.33
  5. Step 5: Solve for x
    x = 234,104,774.33/19,216.19
  6. Step 6: Final answer
    x = 12,182.69

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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.