Home / 14,556.36-20,070.66-12,171.72

Finding the Fourth Proportional to 14,556.36, 20,070.66 and 12,171.72

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Solution

The fourth proportional to 14,556.36, 20,070.66 and 12,171.72 is: 16,782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,556.36 : 20,070.66 = 12,171.72 : x
  2. Step 2: Convert to fraction form
    14,556.36/20,070.66 = 12,171.72/x
  3. Step 3: Cross multiply
    14,556.36x = 20,070.66 × 12,171.72
  4. Step 4: Simplify right side
    14,556.36x = 244,294,453.74
  5. Step 5: Solve for x
    x = 244,294,453.74/14,556.36
  6. Step 6: Final answer
    x = 16,782.66

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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.