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Finding the Fourth Proportional to 9,443.79, 12,938.13 and 9,089.19

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Solution

The fourth proportional to 9,443.79, 12,938.13 and 9,089.19 is: 12,452.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,443.79 : 12,938.13 = 9,089.19 : x
  2. Step 2: Convert to fraction form
    9,443.79/12,938.13 = 9,089.19/x
  3. Step 3: Cross multiply
    9,443.79x = 12,938.13 × 9,089.19
  4. Step 4: Simplify right side
    9,443.79x = 117,597,121.81
  5. Step 5: Solve for x
    x = 117,597,121.81/9,443.79
  6. Step 6: Final answer
    x = 12,452.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.