Home / 12,610.23-18,886.19-12,172.83

Finding the Fourth Proportional to 12,610.23, 18,886.19 and 12,172.83

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Solution

The fourth proportional to 12,610.23, 18,886.19 and 12,172.83 is: 18,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.23 : 18,886.19 = 12,172.83 : x
  2. Step 2: Convert to fraction form
    12,610.23/18,886.19 = 12,172.83/x
  3. Step 3: Cross multiply
    12,610.23x = 18,886.19 × 12,172.83
  4. Step 4: Simplify right side
    12,610.23x = 229,898,319.35
  5. Step 5: Solve for x
    x = 229,898,319.35/12,610.23
  6. Step 6: Final answer
    x = 18,231.10

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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.