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Finding the Fourth Proportional to 19,280.95, 28,925.67 and 8,197.12

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Solution

The fourth proportional to 19,280.95, 28,925.67 and 8,197.12 is: 12,297.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.95 : 28,925.67 = 8,197.12 : x
  2. Step 2: Convert to fraction form
    19,280.95/28,925.67 = 8,197.12/x
  3. Step 3: Cross multiply
    19,280.95x = 28,925.67 × 8,197.12
  4. Step 4: Simplify right side
    19,280.95x = 237,107,188.07
  5. Step 5: Solve for x
    x = 237,107,188.07/19,280.95
  6. Step 6: Final answer
    x = 12,297.48

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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.