Home / 12,387.28-18,583.68-6,150.72

Finding the Fourth Proportional to 12,387.28, 18,583.68 and 6,150.72

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Solution

The fourth proportional to 12,387.28, 18,583.68 and 6,150.72 is: 9,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.28 : 18,583.68 = 6,150.72 : x
  2. Step 2: Convert to fraction form
    12,387.28/18,583.68 = 6,150.72/x
  3. Step 3: Cross multiply
    12,387.28x = 18,583.68 × 6,150.72
  4. Step 4: Simplify right side
    12,387.28x = 114,303,012.25
  5. Step 5: Solve for x
    x = 114,303,012.25/12,387.28
  6. Step 6: Final answer
    x = 9,227.45

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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.