Home / 11,928.45-16,461.36-6,623.76

Finding the Fourth Proportional to 11,928.45, 16,461.36 and 6,623.76

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Solution

The fourth proportional to 11,928.45, 16,461.36 and 6,623.76 is: 9,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.45 : 16,461.36 = 6,623.76 : x
  2. Step 2: Convert to fraction form
    11,928.45/16,461.36 = 6,623.76/x
  3. Step 3: Cross multiply
    11,928.45x = 16,461.36 × 6,623.76
  4. Step 4: Simplify right side
    11,928.45x = 109,036,097.91
  5. Step 5: Solve for x
    x = 109,036,097.91/11,928.45
  6. Step 6: Final answer
    x = 9,140.84

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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.