Home / 11,928.39-16,460.87-6,623.07

Finding the Fourth Proportional to 11,928.39, 16,460.87 and 6,623.07

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Solution

The fourth proportional to 11,928.39, 16,460.87 and 6,623.07 is: 9,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.39 : 16,460.87 = 6,623.07 : x
  2. Step 2: Convert to fraction form
    11,928.39/16,460.87 = 6,623.07/x
  3. Step 3: Cross multiply
    11,928.39x = 16,460.87 × 6,623.07
  4. Step 4: Simplify right side
    11,928.39x = 109,021,461.16
  5. Step 5: Solve for x
    x = 109,021,461.16/11,928.39
  6. Step 6: Final answer
    x = 9,139.66

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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.