Home / 11,928.89-16,461.55-6,623.57

Finding the Fourth Proportional to 11,928.89, 16,461.55 and 6,623.57

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Solution

The fourth proportional to 11,928.89, 16,461.55 and 6,623.57 is: 9,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.89 : 16,461.55 = 6,623.57 : x
  2. Step 2: Convert to fraction form
    11,928.89/16,461.55 = 6,623.57/x
  3. Step 3: Cross multiply
    11,928.89x = 16,461.55 × 6,623.57
  4. Step 4: Simplify right side
    11,928.89x = 109,034,228.73
  5. Step 5: Solve for x
    x = 109,034,228.73/11,928.89
  6. Step 6: Final answer
    x = 9,140.35

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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.