Home / 8,421.01-11,623.24-4,974.62

Finding the Fourth Proportional to 8,421.01, 11,623.24 and 4,974.62

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Solution

The fourth proportional to 8,421.01, 11,623.24 and 4,974.62 is: 6,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.01 : 11,623.24 = 4,974.62 : x
  2. Step 2: Convert to fraction form
    8,421.01/11,623.24 = 4,974.62/x
  3. Step 3: Cross multiply
    8,421.01x = 11,623.24 × 4,974.62
  4. Step 4: Simplify right side
    8,421.01x = 57,821,131.62
  5. Step 5: Solve for x
    x = 57,821,131.62/8,421.01
  6. Step 6: Final answer
    x = 6,866.29

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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.