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Finding the Fourth Proportional to 19,094.78, 28,630.66 and 8,562.89

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Solution

The fourth proportional to 19,094.78, 28,630.66 and 8,562.89 is: 12,839.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,094.78 : 28,630.66 = 8,562.89 : x
  2. Step 2: Convert to fraction form
    19,094.78/28,630.66 = 8,562.89/x
  3. Step 3: Cross multiply
    19,094.78x = 28,630.66 × 8,562.89
  4. Step 4: Simplify right side
    19,094.78x = 245,161,242.38
  5. Step 5: Solve for x
    x = 245,161,242.38/19,094.78
  6. Step 6: Final answer
    x = 12,839.18

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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.