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Finding the Fourth Proportional to 19,017, 28,515.06 and 6,530.04

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Solution

The fourth proportional to 19,017, 28,515.06 and 6,530.04 is: 9,791.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017 : 28,515.06 = 6,530.04 : x
  2. Step 2: Convert to fraction form
    19,017/28,515.06 = 6,530.04/x
  3. Step 3: Cross multiply
    19,017x = 28,515.06 × 6,530.04
  4. Step 4: Simplify right side
    19,017x = 186,204,482.40
  5. Step 5: Solve for x
    x = 186,204,482.40/19,017
  6. Step 6: Final answer
    x = 9,791.48

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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.