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Finding the Fourth Proportional to 9,279.55, 13,921.18 and 8,350.07

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Solution

The fourth proportional to 9,279.55, 13,921.18 and 8,350.07 is: 12,526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.55 : 13,921.18 = 8,350.07 : x
  2. Step 2: Convert to fraction form
    9,279.55/13,921.18 = 8,350.07/x
  3. Step 3: Cross multiply
    9,279.55x = 13,921.18 × 8,350.07
  4. Step 4: Simplify right side
    9,279.55x = 116,242,827.48
  5. Step 5: Solve for x
    x = 116,242,827.48/9,279.55
  6. Step 6: Final answer
    x = 12,526.77

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1.5x scale

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.