Home / 14,986.72-20,673.36-8,698.40

Finding the Fourth Proportional to 14,986.72, 20,673.36 and 8,698.40

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Solution

The fourth proportional to 14,986.72, 20,673.36 and 8,698.40 is: 11,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.72 : 20,673.36 = 8,698.40 : x
  2. Step 2: Convert to fraction form
    14,986.72/20,673.36 = 8,698.40/x
  3. Step 3: Cross multiply
    14,986.72x = 20,673.36 × 8,698.40
  4. Step 4: Simplify right side
    14,986.72x = 179,825,154.62
  5. Step 5: Solve for x
    x = 179,825,154.62/14,986.72
  6. Step 6: Final answer
    x = 11,998.97

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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.