Home / 13,519.80-18,650.52-9,043.74

Finding the Fourth Proportional to 13,519.80, 18,650.52 and 9,043.74

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Solution

The fourth proportional to 13,519.80, 18,650.52 and 9,043.74 is: 12,475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.80 : 18,650.52 = 9,043.74 : x
  2. Step 2: Convert to fraction form
    13,519.80/18,650.52 = 9,043.74/x
  3. Step 3: Cross multiply
    13,519.80x = 18,650.52 × 9,043.74
  4. Step 4: Simplify right side
    13,519.80x = 168,670,453.74
  5. Step 5: Solve for x
    x = 168,670,453.74/13,519.80
  6. Step 6: Final answer
    x = 12,475.81

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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.