Home / 12,143.06-16,758.28-6,765.94

Finding the Fourth Proportional to 12,143.06, 16,758.28 and 6,765.94

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Solution

The fourth proportional to 12,143.06, 16,758.28 and 6,765.94 is: 9,337.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.06 : 16,758.28 = 6,765.94 : x
  2. Step 2: Convert to fraction form
    12,143.06/16,758.28 = 6,765.94/x
  3. Step 3: Cross multiply
    12,143.06x = 16,758.28 × 6,765.94
  4. Step 4: Simplify right side
    12,143.06x = 113,385,483.54
  5. Step 5: Solve for x
    x = 113,385,483.54/12,143.06
  6. Step 6: Final answer
    x = 9,337.48

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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.