Home / 12,571.73-18,860.02-4,779.93

Finding the Fourth Proportional to 12,571.73, 18,860.02 and 4,779.93

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Solution

The fourth proportional to 12,571.73, 18,860.02 and 4,779.93 is: 7,170.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.73 : 18,860.02 = 4,779.93 : x
  2. Step 2: Convert to fraction form
    12,571.73/18,860.02 = 4,779.93/x
  3. Step 3: Cross multiply
    12,571.73x = 18,860.02 × 4,779.93
  4. Step 4: Simplify right side
    12,571.73x = 90,149,551.50
  5. Step 5: Solve for x
    x = 90,149,551.50/12,571.73
  6. Step 6: Final answer
    x = 7,170.82

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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.