Home / 12,020.06-18,014.38-8,699.49

Finding the Fourth Proportional to 12,020.06, 18,014.38 and 8,699.49

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Solution

The fourth proportional to 12,020.06, 18,014.38 and 8,699.49 is: 13,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.06 : 18,014.38 = 8,699.49 : x
  2. Step 2: Convert to fraction form
    12,020.06/18,014.38 = 8,699.49/x
  3. Step 3: Cross multiply
    12,020.06x = 18,014.38 × 8,699.49
  4. Step 4: Simplify right side
    12,020.06x = 156,715,829.36
  5. Step 5: Solve for x
    x = 156,715,829.36/12,020.06
  6. Step 6: Final answer
    x = 13,037.86

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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.