Home / 13,973.05-20,959.58-8,125.56

Finding the Fourth Proportional to 13,973.05, 20,959.58 and 8,125.56

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Solution

The fourth proportional to 13,973.05, 20,959.58 and 8,125.56 is: 12,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.05 : 20,959.58 = 8,125.56 : x
  2. Step 2: Convert to fraction form
    13,973.05/20,959.58 = 8,125.56/x
  3. Step 3: Cross multiply
    13,973.05x = 20,959.58 × 8,125.56
  4. Step 4: Simplify right side
    13,973.05x = 170,308,299.47
  5. Step 5: Solve for x
    x = 170,308,299.47/13,973.05
  6. Step 6: Final answer
    x = 12,188.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.