Home / 13,787.56-19,018.30-12,023.40

Finding the Fourth Proportional to 13,787.56, 19,018.30 and 12,023.40

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Solution

The fourth proportional to 13,787.56, 19,018.30 and 12,023.40 is: 16,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.56 : 19,018.30 = 12,023.40 : x
  2. Step 2: Convert to fraction form
    13,787.56/19,018.30 = 12,023.40/x
  3. Step 3: Cross multiply
    13,787.56x = 19,018.30 × 12,023.40
  4. Step 4: Simplify right side
    13,787.56x = 228,664,628.22
  5. Step 5: Solve for x
    x = 228,664,628.22/13,787.56
  6. Step 6: Final answer
    x = 16,584.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.