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Finding the Fourth Proportional to 19,266.28, 28,898.98 and 8,878.03

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Solution

The fourth proportional to 19,266.28, 28,898.98 and 8,878.03 is: 13,316.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.28 : 28,898.98 = 8,878.03 : x
  2. Step 2: Convert to fraction form
    19,266.28/28,898.98 = 8,878.03/x
  3. Step 3: Cross multiply
    19,266.28x = 28,898.98 × 8,878.03
  4. Step 4: Simplify right side
    19,266.28x = 256,566,011.41
  5. Step 5: Solve for x
    x = 256,566,011.41/19,266.28
  6. Step 6: Final answer
    x = 13,316.84

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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.