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Finding the Fourth Proportional to 18,877.04, 28,319.04 and 9,017

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Solution

The fourth proportional to 18,877.04, 28,319.04 and 9,017 is: 13,527.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.04 : 28,319.04 = 9,017 : x
  2. Step 2: Convert to fraction form
    18,877.04/28,319.04 = 9,017/x
  3. Step 3: Cross multiply
    18,877.04x = 28,319.04 × 9,017
  4. Step 4: Simplify right side
    18,877.04x = 255,352,783.68
  5. Step 5: Solve for x
    x = 255,352,783.68/18,877.04
  6. Step 6: Final answer
    x = 13,527.16

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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.