Home / 11,973.42-16,520.36-6,666.91

Finding the Fourth Proportional to 11,973.42, 16,520.36 and 6,666.91

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Solution

The fourth proportional to 11,973.42, 16,520.36 and 6,666.91 is: 9,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,973.42 : 16,520.36 = 6,666.91 : x
  2. Step 2: Convert to fraction form
    11,973.42/16,520.36 = 6,666.91/x
  3. Step 3: Cross multiply
    11,973.42x = 16,520.36 × 6,666.91
  4. Step 4: Simplify right side
    11,973.42x = 110,139,678.65
  5. Step 5: Solve for x
    x = 110,139,678.65/11,973.42
  6. Step 6: Final answer
    x = 9,198.68

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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.