Home / 47,190.94-70,787.09-12,130.63

Finding the Fourth Proportional to 47,190.94, 70,787.09 and 12,130.63

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Solution

The fourth proportional to 47,190.94, 70,787.09 and 12,130.63 is: 18,196.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,190.94 : 70,787.09 = 12,130.63 : x
  2. Step 2: Convert to fraction form
    47,190.94/70,787.09 = 12,130.63/x
  3. Step 3: Cross multiply
    47,190.94x = 70,787.09 × 12,130.63
  4. Step 4: Simplify right side
    47,190.94x = 858,691,997.57
  5. Step 5: Solve for x
    x = 858,691,997.57/47,190.94
  6. Step 6: Final answer
    x = 18,196.12

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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.