Home / 12,180.28-18,270.36-2,946.28

Finding the Fourth Proportional to 12,180.28, 18,270.36 and 2,946.28

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Solution

The fourth proportional to 12,180.28, 18,270.36 and 2,946.28 is: 4,419.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.28 : 18,270.36 = 2,946.28 : x
  2. Step 2: Convert to fraction form
    12,180.28/18,270.36 = 2,946.28/x
  3. Step 3: Cross multiply
    12,180.28x = 18,270.36 × 2,946.28
  4. Step 4: Simplify right side
    12,180.28x = 53,829,596.26
  5. Step 5: Solve for x
    x = 53,829,596.26/12,180.28
  6. Step 6: Final answer
    x = 4,419.41

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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.