Home / 12,671.64-18,994.27-4,768.72

Finding the Fourth Proportional to 12,671.64, 18,994.27 and 4,768.72

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Solution

The fourth proportional to 12,671.64, 18,994.27 and 4,768.72 is: 7,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.64 : 18,994.27 = 4,768.72 : x
  2. Step 2: Convert to fraction form
    12,671.64/18,994.27 = 4,768.72/x
  3. Step 3: Cross multiply
    12,671.64x = 18,994.27 × 4,768.72
  4. Step 4: Simplify right side
    12,671.64x = 90,578,425.02
  5. Step 5: Solve for x
    x = 90,578,425.02/12,671.64
  6. Step 6: Final answer
    x = 7,148.12

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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.