Home / 12,256.20-18,354.69-6,975.21

Finding the Fourth Proportional to 12,256.20, 18,354.69 and 6,975.21

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Solution

The fourth proportional to 12,256.20, 18,354.69 and 6,975.21 is: 10,445.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.20 : 18,354.69 = 6,975.21 : x
  2. Step 2: Convert to fraction form
    12,256.20/18,354.69 = 6,975.21/x
  3. Step 3: Cross multiply
    12,256.20x = 18,354.69 × 6,975.21
  4. Step 4: Simplify right side
    12,256.20x = 128,027,817.23
  5. Step 5: Solve for x
    x = 128,027,817.23/12,256.20
  6. Step 6: Final answer
    x = 10,445.96

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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.