Home / 12,511.24-18,766.90-5,018.20

Finding the Fourth Proportional to 12,511.24, 18,766.90 and 5,018.20

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Solution

The fourth proportional to 12,511.24, 18,766.90 and 5,018.20 is: 7,527.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.24 : 18,766.90 = 5,018.20 : x
  2. Step 2: Convert to fraction form
    12,511.24/18,766.90 = 5,018.20/x
  3. Step 3: Cross multiply
    12,511.24x = 18,766.90 × 5,018.20
  4. Step 4: Simplify right side
    12,511.24x = 94,176,057.58
  5. Step 5: Solve for x
    x = 94,176,057.58/12,511.24
  6. Step 6: Final answer
    x = 7,527.32

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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.