Home / 12,577.95-18,866.61-3,218.00

Finding the Fourth Proportional to 12,577.95, 18,866.61 and 3,218.00

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Solution

The fourth proportional to 12,577.95, 18,866.61 and 3,218.00 is: 4,826.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.95 : 18,866.61 = 3,218.00 : x
  2. Step 2: Convert to fraction form
    12,577.95/18,866.61 = 3,218.00/x
  3. Step 3: Cross multiply
    12,577.95x = 18,866.61 × 3,218.00
  4. Step 4: Simplify right side
    12,577.95x = 60,712,656.65
  5. Step 5: Solve for x
    x = 60,712,656.65/12,577.95
  6. Step 6: Final answer
    x = 4,826.91

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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.