Home / 12,261.12-16,919.84-6,956.94

Finding the Fourth Proportional to 12,261.12, 16,919.84 and 6,956.94

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Solution

The fourth proportional to 12,261.12, 16,919.84 and 6,956.94 is: 9,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.12 : 16,919.84 = 6,956.94 : x
  2. Step 2: Convert to fraction form
    12,261.12/16,919.84 = 6,956.94/x
  3. Step 3: Cross multiply
    12,261.12x = 16,919.84 × 6,956.94
  4. Step 4: Simplify right side
    12,261.12x = 117,710,258.22
  5. Step 5: Solve for x
    x = 117,710,258.22/12,261.12
  6. Step 6: Final answer
    x = 9,600.28

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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.