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Finding the Fourth Proportional to 9,368.70, 12,923.91 and 6,343.89

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Solution

The fourth proportional to 9,368.70, 12,923.91 and 6,343.89 is: 8,751.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.70 : 12,923.91 = 6,343.89 : x
  2. Step 2: Convert to fraction form
    9,368.70/12,923.91 = 6,343.89/x
  3. Step 3: Cross multiply
    9,368.70x = 12,923.91 × 6,343.89
  4. Step 4: Simplify right side
    9,368.70x = 81,987,863.41
  5. Step 5: Solve for x
    x = 81,987,863.41/9,368.70
  6. Step 6: Final answer
    x = 8,751.25

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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.