Home / 15,446.19-21,317.48-12,923.85

Finding the Fourth Proportional to 15,446.19, 21,317.48 and 12,923.85

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Solution

The fourth proportional to 15,446.19, 21,317.48 and 12,923.85 is: 17,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.19 : 21,317.48 = 12,923.85 : x
  2. Step 2: Convert to fraction form
    15,446.19/21,317.48 = 12,923.85/x
  3. Step 3: Cross multiply
    15,446.19x = 21,317.48 × 12,923.85
  4. Step 4: Simplify right side
    15,446.19x = 275,503,977.68
  5. Step 5: Solve for x
    x = 275,503,977.68/15,446.19
  6. Step 6: Final answer
    x = 17,836.37

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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.