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Finding the Fourth Proportional to 19,110, 28,666.08 and 6,798

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Solution

The fourth proportional to 19,110, 28,666.08 and 6,798 is: 10,197.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110 : 28,666.08 = 6,798 : x
  2. Step 2: Convert to fraction form
    19,110/28,666.08 = 6,798/x
  3. Step 3: Cross multiply
    19,110x = 28,666.08 × 6,798
  4. Step 4: Simplify right side
    19,110x = 194,872,011.84
  5. Step 5: Solve for x
    x = 194,872,011.84/19,110
  6. Step 6: Final answer
    x = 10,197.38

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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.