Home / 12,170.76-18,256.14-2,936.76

Finding the Fourth Proportional to 12,170.76, 18,256.14 and 2,936.76

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Solution

The fourth proportional to 12,170.76, 18,256.14 and 2,936.76 is: 4,405.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.76 : 18,256.14 = 2,936.76 : x
  2. Step 2: Convert to fraction form
    12,170.76/18,256.14 = 2,936.76/x
  3. Step 3: Cross multiply
    12,170.76x = 18,256.14 × 2,936.76
  4. Step 4: Simplify right side
    12,170.76x = 53,613,901.71
  5. Step 5: Solve for x
    x = 53,613,901.71/12,170.76
  6. Step 6: Final answer
    x = 4,405.14

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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.