Home / 11,081.61-15,298.26-8,558.05

Finding the Fourth Proportional to 11,081.61, 15,298.26 and 8,558.05

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Solution

The fourth proportional to 11,081.61, 15,298.26 and 8,558.05 is: 11,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.61 : 15,298.26 = 8,558.05 : x
  2. Step 2: Convert to fraction form
    11,081.61/15,298.26 = 8,558.05/x
  3. Step 3: Cross multiply
    11,081.61x = 15,298.26 × 8,558.05
  4. Step 4: Simplify right side
    11,081.61x = 130,923,273.99
  5. Step 5: Solve for x
    x = 130,923,273.99/11,081.61
  6. Step 6: Final answer
    x = 11,814.46

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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.