Home / 11,928.90-16,460.64-6,623.58

Finding the Fourth Proportional to 11,928.90, 16,460.64 and 6,623.58

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Solution

The fourth proportional to 11,928.90, 16,460.64 and 6,623.58 is: 9,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.90 : 16,460.64 = 6,623.58 : x
  2. Step 2: Convert to fraction form
    11,928.90/16,460.64 = 6,623.58/x
  3. Step 3: Cross multiply
    11,928.90x = 16,460.64 × 6,623.58
  4. Step 4: Simplify right side
    11,928.90x = 109,028,365.89
  5. Step 5: Solve for x
    x = 109,028,365.89/11,928.90
  6. Step 6: Final answer
    x = 9,139.85

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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.