Home / 15,198.34-20,973.52-8,485.62

Finding the Fourth Proportional to 15,198.34, 20,973.52 and 8,485.62

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Solution

The fourth proportional to 15,198.34, 20,973.52 and 8,485.62 is: 11,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,198.34 : 20,973.52 = 8,485.62 : x
  2. Step 2: Convert to fraction form
    15,198.34/20,973.52 = 8,485.62/x
  3. Step 3: Cross multiply
    15,198.34x = 20,973.52 × 8,485.62
  4. Step 4: Simplify right side
    15,198.34x = 177,973,320.78
  5. Step 5: Solve for x
    x = 177,973,320.78/15,198.34
  6. Step 6: Final answer
    x = 11,710.05

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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.