Home / 15,558.98-21,470.55-8,843.67

Finding the Fourth Proportional to 15,558.98, 21,470.55 and 8,843.67

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Solution

The fourth proportional to 15,558.98, 21,470.55 and 8,843.67 is: 12,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.98 : 21,470.55 = 8,843.67 : x
  2. Step 2: Convert to fraction form
    15,558.98/21,470.55 = 8,843.67/x
  3. Step 3: Cross multiply
    15,558.98x = 21,470.55 × 8,843.67
  4. Step 4: Simplify right side
    15,558.98x = 189,878,458.92
  5. Step 5: Solve for x
    x = 189,878,458.92/15,558.98
  6. Step 6: Final answer
    x = 12,203.79

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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.