Home / 12,025.85-18,038.21-3,141.18

Finding the Fourth Proportional to 12,025.85, 18,038.21 and 3,141.18

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Solution

The fourth proportional to 12,025.85, 18,038.21 and 3,141.18 is: 4,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.85 : 18,038.21 = 3,141.18 : x
  2. Step 2: Convert to fraction form
    12,025.85/18,038.21 = 3,141.18/x
  3. Step 3: Cross multiply
    12,025.85x = 18,038.21 × 3,141.18
  4. Step 4: Simplify right side
    12,025.85x = 56,661,248.78
  5. Step 5: Solve for x
    x = 56,661,248.78/12,025.85
  6. Step 6: Final answer
    x = 4,711.62

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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.