Home / 14,701.05-20,287.59-7,986.73

Finding the Fourth Proportional to 14,701.05, 20,287.59 and 7,986.73

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Solution

The fourth proportional to 14,701.05, 20,287.59 and 7,986.73 is: 11,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,701.05 : 20,287.59 = 7,986.73 : x
  2. Step 2: Convert to fraction form
    14,701.05/20,287.59 = 7,986.73/x
  3. Step 3: Cross multiply
    14,701.05x = 20,287.59 × 7,986.73
  4. Step 4: Simplify right side
    14,701.05x = 162,031,362.31
  5. Step 5: Solve for x
    x = 162,031,362.31/14,701.05
  6. Step 6: Final answer
    x = 11,021.76

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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.