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Finding the Fourth Proportional to 9,305.08, 12,828.18 and 7,423.05

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Solution

The fourth proportional to 9,305.08, 12,828.18 and 7,423.05 is: 10,233.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,305.08 : 12,828.18 = 7,423.05 : x
  2. Step 2: Convert to fraction form
    9,305.08/12,828.18 = 7,423.05/x
  3. Step 3: Cross multiply
    9,305.08x = 12,828.18 × 7,423.05
  4. Step 4: Simplify right side
    9,305.08x = 95,224,221.55
  5. Step 5: Solve for x
    x = 95,224,221.55/9,305.08
  6. Step 6: Final answer
    x = 10,233.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.