Home / 12,186.63-18,280.60-3,867.30

Finding the Fourth Proportional to 12,186.63, 18,280.60 and 3,867.30

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Solution

The fourth proportional to 12,186.63, 18,280.60 and 3,867.30 is: 5,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.63 : 18,280.60 = 3,867.30 : x
  2. Step 2: Convert to fraction form
    12,186.63/18,280.60 = 3,867.30/x
  3. Step 3: Cross multiply
    12,186.63x = 18,280.60 × 3,867.30
  4. Step 4: Simplify right side
    12,186.63x = 70,696,554.71
  5. Step 5: Solve for x
    x = 70,696,554.71/12,186.63
  6. Step 6: Final answer
    x = 5,801.16

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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.