Home / 12,283.15-18,428.34-3,963.01

Finding the Fourth Proportional to 12,283.15, 18,428.34 and 3,963.01

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Solution

The fourth proportional to 12,283.15, 18,428.34 and 3,963.01 is: 5,945.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.15 : 18,428.34 = 3,963.01 : x
  2. Step 2: Convert to fraction form
    12,283.15/18,428.34 = 3,963.01/x
  3. Step 3: Cross multiply
    12,283.15x = 18,428.34 × 3,963.01
  4. Step 4: Simplify right side
    12,283.15x = 73,031,695.70
  5. Step 5: Solve for x
    x = 73,031,695.70/12,283.15
  6. Step 6: Final answer
    x = 5,945.68

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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.