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Finding the Fourth Proportional to 19,094.56, 28,644 and 8,709.28

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Solution

The fourth proportional to 19,094.56, 28,644 and 8,709.28 is: 13,064.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,094.56 : 28,644 = 8,709.28 : x
  2. Step 2: Convert to fraction form
    19,094.56/28,644 = 8,709.28/x
  3. Step 3: Cross multiply
    19,094.56x = 28,644 × 8,709.28
  4. Step 4: Simplify right side
    19,094.56x = 249,468,616.32
  5. Step 5: Solve for x
    x = 249,468,616.32/19,094.56
  6. Step 6: Final answer
    x = 13,064.91

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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.