Home / 19,176.40-28,772.70-9,310.60

Finding the Fourth Proportional to 19,176.40, 28,772.70 and 9,310.60

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Solution

The fourth proportional to 19,176.40, 28,772.70 and 9,310.60 is: 13,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.40 : 28,772.70 = 9,310.60 : x
  2. Step 2: Convert to fraction form
    19,176.40/28,772.70 = 9,310.60/x
  3. Step 3: Cross multiply
    19,176.40x = 28,772.70 × 9,310.60
  4. Step 4: Simplify right side
    19,176.40x = 267,891,100.62
  5. Step 5: Solve for x
    x = 267,891,100.62/19,176.40
  6. Step 6: Final answer
    x = 13,969.83

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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.