Home / 11,928.69-16,461.78-6,623.52

Finding the Fourth Proportional to 11,928.69, 16,461.78 and 6,623.52

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Solution

The fourth proportional to 11,928.69, 16,461.78 and 6,623.52 is: 9,140.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.69 : 16,461.78 = 6,623.52 : x
  2. Step 2: Convert to fraction form
    11,928.69/16,461.78 = 6,623.52/x
  3. Step 3: Cross multiply
    11,928.69x = 16,461.78 × 6,623.52
  4. Step 4: Simplify right side
    11,928.69x = 109,034,929.07
  5. Step 5: Solve for x
    x = 109,034,929.07/11,928.69
  6. Step 6: Final answer
    x = 9,140.56

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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.