Home / 19,122.90-28,688.40-5,794.80

Finding the Fourth Proportional to 19,122.90, 28,688.40 and 5,794.80

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Solution

The fourth proportional to 19,122.90, 28,688.40 and 5,794.80 is: 8,693.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.90 : 28,688.40 = 5,794.80 : x
  2. Step 2: Convert to fraction form
    19,122.90/28,688.40 = 5,794.80/x
  3. Step 3: Cross multiply
    19,122.90x = 28,688.40 × 5,794.80
  4. Step 4: Simplify right side
    19,122.90x = 166,243,540.32
  5. Step 5: Solve for x
    x = 166,243,540.32/19,122.90
  6. Step 6: Final answer
    x = 8,693.43

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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.