Home / 12,257.21-18,373.65-4,857.05

Finding the Fourth Proportional to 12,257.21, 18,373.65 and 4,857.05

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Solution

The fourth proportional to 12,257.21, 18,373.65 and 4,857.05 is: 7,280.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.21 : 18,373.65 = 4,857.05 : x
  2. Step 2: Convert to fraction form
    12,257.21/18,373.65 = 4,857.05/x
  3. Step 3: Cross multiply
    12,257.21x = 18,373.65 × 4,857.05
  4. Step 4: Simplify right side
    12,257.21x = 89,241,644.86
  5. Step 5: Solve for x
    x = 89,241,644.86/12,257.21
  6. Step 6: Final answer
    x = 7,280.75

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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.