Home / 12,684.18-19,029.51-4,787.22

Finding the Fourth Proportional to 12,684.18, 19,029.51 and 4,787.22

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Solution

The fourth proportional to 12,684.18, 19,029.51 and 4,787.22 is: 7,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.18 : 19,029.51 = 4,787.22 : x
  2. Step 2: Convert to fraction form
    12,684.18/19,029.51 = 4,787.22/x
  3. Step 3: Cross multiply
    12,684.18x = 19,029.51 × 4,787.22
  4. Step 4: Simplify right side
    12,684.18x = 91,098,450.86
  5. Step 5: Solve for x
    x = 91,098,450.86/12,684.18
  6. Step 6: Final answer
    x = 7,182.05

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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.