Home / 12,277.16-18,415.77-3,957.78

Finding the Fourth Proportional to 12,277.16, 18,415.77 and 3,957.78

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Solution

The fourth proportional to 12,277.16, 18,415.77 and 3,957.78 is: 5,936.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.16 : 18,415.77 = 3,957.78 : x
  2. Step 2: Convert to fraction form
    12,277.16/18,415.77 = 3,957.78/x
  3. Step 3: Cross multiply
    12,277.16x = 18,415.77 × 3,957.78
  4. Step 4: Simplify right side
    12,277.16x = 72,885,566.19
  5. Step 5: Solve for x
    x = 72,885,566.19/12,277.16
  6. Step 6: Final answer
    x = 5,936.68

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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.