Home / 12,666.56-18,999.90-4,346.66

Finding the Fourth Proportional to 12,666.56, 18,999.90 and 4,346.66

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Solution

The fourth proportional to 12,666.56, 18,999.90 and 4,346.66 is: 6,520.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.56 : 18,999.90 = 4,346.66 : x
  2. Step 2: Convert to fraction form
    12,666.56/18,999.90 = 4,346.66/x
  3. Step 3: Cross multiply
    12,666.56x = 18,999.90 × 4,346.66
  4. Step 4: Simplify right side
    12,666.56x = 82,586,105.33
  5. Step 5: Solve for x
    x = 82,586,105.33/12,666.56
  6. Step 6: Final answer
    x = 6,520.01

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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.