Home / 13,093.46-18,079.88-12,143.72

Finding the Fourth Proportional to 13,093.46, 18,079.88 and 12,143.72

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Solution

The fourth proportional to 13,093.46, 18,079.88 and 12,143.72 is: 16,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.46 : 18,079.88 = 12,143.72 : x
  2. Step 2: Convert to fraction form
    13,093.46/18,079.88 = 12,143.72/x
  3. Step 3: Cross multiply
    13,093.46x = 18,079.88 × 12,143.72
  4. Step 4: Simplify right side
    13,093.46x = 219,557,000.35
  5. Step 5: Solve for x
    x = 219,557,000.35/13,093.46
  6. Step 6: Final answer
    x = 16,768.45

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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.