Home / 15,454.70-21,327.84-9,085.94

Finding the Fourth Proportional to 15,454.70, 21,327.84 and 9,085.94

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Solution

The fourth proportional to 15,454.70, 21,327.84 and 9,085.94 is: 12,538.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.70 : 21,327.84 = 9,085.94 : x
  2. Step 2: Convert to fraction form
    15,454.70/21,327.84 = 9,085.94/x
  3. Step 3: Cross multiply
    15,454.70x = 21,327.84 × 9,085.94
  4. Step 4: Simplify right side
    15,454.70x = 193,783,474.57
  5. Step 5: Solve for x
    x = 193,783,474.57/15,454.70
  6. Step 6: Final answer
    x = 12,538.81

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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.