Home / 19,323.93-28,963.62-8,778.15

Finding the Fourth Proportional to 19,323.93, 28,963.62 and 8,778.15

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Solution

The fourth proportional to 19,323.93, 28,963.62 and 8,778.15 is: 13,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.93 : 28,963.62 = 8,778.15 : x
  2. Step 2: Convert to fraction form
    19,323.93/28,963.62 = 8,778.15/x
  3. Step 3: Cross multiply
    19,323.93x = 28,963.62 × 8,778.15
  4. Step 4: Simplify right side
    19,323.93x = 254,247,000.90
  5. Step 5: Solve for x
    x = 254,247,000.90/19,323.93
  6. Step 6: Final answer
    x = 13,157.11

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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.