Home / 15,558.91-21,470.83-8,845.27

Finding the Fourth Proportional to 15,558.91, 21,470.83 and 8,845.27

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Solution

The fourth proportional to 15,558.91, 21,470.83 and 8,845.27 is: 12,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.91 : 21,470.83 = 8,845.27 : x
  2. Step 2: Convert to fraction form
    15,558.91/21,470.83 = 8,845.27/x
  3. Step 3: Cross multiply
    15,558.91x = 21,470.83 × 8,845.27
  4. Step 4: Simplify right side
    15,558.91x = 189,915,288.47
  5. Step 5: Solve for x
    x = 189,915,288.47/15,558.91
  6. Step 6: Final answer
    x = 12,206.21

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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.