Home / 12,405.74-18,610.92-4,088.16

Finding the Fourth Proportional to 12,405.74, 18,610.92 and 4,088.16

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Solution

The fourth proportional to 12,405.74, 18,610.92 and 4,088.16 is: 6,133.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.74 : 18,610.92 = 4,088.16 : x
  2. Step 2: Convert to fraction form
    12,405.74/18,610.92 = 4,088.16/x
  3. Step 3: Cross multiply
    12,405.74x = 18,610.92 × 4,088.16
  4. Step 4: Simplify right side
    12,405.74x = 76,084,418.71
  5. Step 5: Solve for x
    x = 76,084,418.71/12,405.74
  6. Step 6: Final answer
    x = 6,133.00

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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.