Home / 12,281.22-18,421.83-3,516.17

Finding the Fourth Proportional to 12,281.22, 18,421.83 and 3,516.17

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Solution

The fourth proportional to 12,281.22, 18,421.83 and 3,516.17 is: 5,274.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.22 : 18,421.83 = 3,516.17 : x
  2. Step 2: Convert to fraction form
    12,281.22/18,421.83 = 3,516.17/x
  3. Step 3: Cross multiply
    12,281.22x = 18,421.83 × 3,516.17
  4. Step 4: Simplify right side
    12,281.22x = 64,774,285.99
  5. Step 5: Solve for x
    x = 64,774,285.99/12,281.22
  6. Step 6: Final answer
    x = 5,274.26

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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.