Home / 19,283.60-28,920.48-8,184.56

Finding the Fourth Proportional to 19,283.60, 28,920.48 and 8,184.56

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Solution

The fourth proportional to 19,283.60, 28,920.48 and 8,184.56 is: 12,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,283.60 : 28,920.48 = 8,184.56 : x
  2. Step 2: Convert to fraction form
    19,283.60/28,920.48 = 8,184.56/x
  3. Step 3: Cross multiply
    19,283.60x = 28,920.48 × 8,184.56
  4. Step 4: Simplify right side
    19,283.60x = 236,701,403.79
  5. Step 5: Solve for x
    x = 236,701,403.79/19,283.60
  6. Step 6: Final answer
    x = 12,274.75

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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.