Home / 12,176.41-18,261.81-3,412.21

Finding the Fourth Proportional to 12,176.41, 18,261.81 and 3,412.21

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Solution

The fourth proportional to 12,176.41, 18,261.81 and 3,412.21 is: 5,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.41 : 18,261.81 = 3,412.21 : x
  2. Step 2: Convert to fraction form
    12,176.41/18,261.81 = 3,412.21/x
  3. Step 3: Cross multiply
    12,176.41x = 18,261.81 × 3,412.21
  4. Step 4: Simplify right side
    12,176.41x = 62,313,130.70
  5. Step 5: Solve for x
    x = 62,313,130.70/12,176.41
  6. Step 6: Final answer
    x = 5,117.53

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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.