Home / 9,188.30-13,720.04-8,939.18

Finding the Fourth Proportional to 9,188.30, 13,720.04 and 8,939.18

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Solution

The fourth proportional to 9,188.30, 13,720.04 and 8,939.18 is: 13,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.30 : 13,720.04 = 8,939.18 : x
  2. Step 2: Convert to fraction form
    9,188.30/13,720.04 = 8,939.18/x
  3. Step 3: Cross multiply
    9,188.30x = 13,720.04 × 8,939.18
  4. Step 4: Simplify right side
    9,188.30x = 122,645,907.17
  5. Step 5: Solve for x
    x = 122,645,907.17/9,188.30
  6. Step 6: Final answer
    x = 13,348.05

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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.