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Finding the Fourth Proportional to 9,479.78, 14,226.74 and 7,021.23

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Solution

The fourth proportional to 9,479.78, 14,226.74 and 7,021.23 is: 10,537.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.78 : 14,226.74 = 7,021.23 : x
  2. Step 2: Convert to fraction form
    9,479.78/14,226.74 = 7,021.23/x
  3. Step 3: Cross multiply
    9,479.78x = 14,226.74 × 7,021.23
  4. Step 4: Simplify right side
    9,479.78x = 99,889,231.59
  5. Step 5: Solve for x
    x = 99,889,231.59/9,479.78
  6. Step 6: Final answer
    x = 10,537.08

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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.