Home / 19,254.39-28,880.37-8,154.15

Finding the Fourth Proportional to 19,254.39, 28,880.37 and 8,154.15

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Solution

The fourth proportional to 19,254.39, 28,880.37 and 8,154.15 is: 12,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,254.39 : 28,880.37 = 8,154.15 : x
  2. Step 2: Convert to fraction form
    19,254.39/28,880.37 = 8,154.15/x
  3. Step 3: Cross multiply
    19,254.39x = 28,880.37 × 8,154.15
  4. Step 4: Simplify right side
    19,254.39x = 235,494,869.04
  5. Step 5: Solve for x
    x = 235,494,869.04/19,254.39
  6. Step 6: Final answer
    x = 12,230.71

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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.