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Finding the Fourth Proportional to 9,370.35, 13,987.16 and 8,188.03

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Solution

The fourth proportional to 9,370.35, 13,987.16 and 8,188.03 is: 12,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.35 : 13,987.16 = 8,188.03 : x
  2. Step 2: Convert to fraction form
    9,370.35/13,987.16 = 8,188.03/x
  3. Step 3: Cross multiply
    9,370.35x = 13,987.16 × 8,188.03
  4. Step 4: Simplify right side
    9,370.35x = 114,527,174.82
  5. Step 5: Solve for x
    x = 114,527,174.82/9,370.35
  6. Step 6: Final answer
    x = 12,222.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.