Home / 19,206.68-28,813.92-8,113.40

Finding the Fourth Proportional to 19,206.68, 28,813.92 and 8,113.40

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Solution

The fourth proportional to 19,206.68, 28,813.92 and 8,113.40 is: 12,171.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,206.68 : 28,813.92 = 8,113.40 : x
  2. Step 2: Convert to fraction form
    19,206.68/28,813.92 = 8,113.40/x
  3. Step 3: Cross multiply
    19,206.68x = 28,813.92 × 8,113.40
  4. Step 4: Simplify right side
    19,206.68x = 233,778,858.53
  5. Step 5: Solve for x
    x = 233,778,858.53/19,206.68
  6. Step 6: Final answer
    x = 12,171.75

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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.