Home / 11,698.78-16,139.53-8,505.08

Finding the Fourth Proportional to 11,698.78, 16,139.53 and 8,505.08

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Solution

The fourth proportional to 11,698.78, 16,139.53 and 8,505.08 is: 11,733.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,698.78 : 16,139.53 = 8,505.08 : x
  2. Step 2: Convert to fraction form
    11,698.78/16,139.53 = 8,505.08/x
  3. Step 3: Cross multiply
    11,698.78x = 16,139.53 × 8,505.08
  4. Step 4: Simplify right side
    11,698.78x = 137,267,914.96
  5. Step 5: Solve for x
    x = 137,267,914.96/11,698.78
  6. Step 6: Final answer
    x = 11,733.52

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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.