Home / 19,246.60-28,884.48-12,991.78

Finding the Fourth Proportional to 19,246.60, 28,884.48 and 12,991.78

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Solution

The fourth proportional to 19,246.60, 28,884.48 and 12,991.78 is: 19,497.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,246.60 : 28,884.48 = 12,991.78 : x
  2. Step 2: Convert to fraction form
    19,246.60/28,884.48 = 12,991.78/x
  3. Step 3: Cross multiply
    19,246.60x = 28,884.48 × 12,991.78
  4. Step 4: Simplify right side
    19,246.60x = 375,260,809.57
  5. Step 5: Solve for x
    x = 375,260,809.57/19,246.60
  6. Step 6: Final answer
    x = 19,497.51

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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.