Home / 12,007.98-18,011.88-4,106.68

Finding the Fourth Proportional to 12,007.98, 18,011.88 and 4,106.68

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Solution

The fourth proportional to 12,007.98, 18,011.88 and 4,106.68 is: 6,159.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.98 : 18,011.88 = 4,106.68 : x
  2. Step 2: Convert to fraction form
    12,007.98/18,011.88 = 4,106.68/x
  3. Step 3: Cross multiply
    12,007.98x = 18,011.88 × 4,106.68
  4. Step 4: Simplify right side
    12,007.98x = 73,969,027.36
  5. Step 5: Solve for x
    x = 73,969,027.36/12,007.98
  6. Step 6: Final answer
    x = 6,159.99

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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.