Home / 12,666.26-18,999.38-3,432.26

Finding the Fourth Proportional to 12,666.26, 18,999.38 and 3,432.26

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Solution

The fourth proportional to 12,666.26, 18,999.38 and 3,432.26 is: 5,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.26 : 18,999.38 = 3,432.26 : x
  2. Step 2: Convert to fraction form
    12,666.26/18,999.38 = 3,432.26/x
  3. Step 3: Cross multiply
    12,666.26x = 18,999.38 × 3,432.26
  4. Step 4: Simplify right side
    12,666.26x = 65,210,812.00
  5. Step 5: Solve for x
    x = 65,210,812.00/12,666.26
  6. Step 6: Final answer
    x = 5,148.39

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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.