Home / 12,666.08-18,992.67-4,229.55

Finding the Fourth Proportional to 12,666.08, 18,992.67 and 4,229.55

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Solution

The fourth proportional to 12,666.08, 18,992.67 and 4,229.55 is: 6,342.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.08 : 18,992.67 = 4,229.55 : x
  2. Step 2: Convert to fraction form
    12,666.08/18,992.67 = 4,229.55/x
  3. Step 3: Cross multiply
    12,666.08x = 18,992.67 × 4,229.55
  4. Step 4: Simplify right side
    12,666.08x = 80,330,462.74
  5. Step 5: Solve for x
    x = 80,330,462.74/12,666.08
  6. Step 6: Final answer
    x = 6,342.17

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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.