Home / 12,280.14-18,421.38-3,957.93

Finding the Fourth Proportional to 12,280.14, 18,421.38 and 3,957.93

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Solution

The fourth proportional to 12,280.14, 18,421.38 and 3,957.93 is: 5,937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.14 : 18,421.38 = 3,957.93 : x
  2. Step 2: Convert to fraction form
    12,280.14/18,421.38 = 3,957.93/x
  3. Step 3: Cross multiply
    12,280.14x = 18,421.38 × 3,957.93
  4. Step 4: Simplify right side
    12,280.14x = 72,910,532.54
  5. Step 5: Solve for x
    x = 72,910,532.54/12,280.14
  6. Step 6: Final answer
    x = 5,937.27

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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.