Home / 11,928.36-16,460.85-6,623.13

Finding the Fourth Proportional to 11,928.36, 16,460.85 and 6,623.13

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Solution

The fourth proportional to 11,928.36, 16,460.85 and 6,623.13 is: 9,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.36 : 16,460.85 = 6,623.13 : x
  2. Step 2: Convert to fraction form
    11,928.36/16,460.85 = 6,623.13/x
  3. Step 3: Cross multiply
    11,928.36x = 16,460.85 × 6,623.13
  4. Step 4: Simplify right side
    11,928.36x = 109,022,349.46
  5. Step 5: Solve for x
    x = 109,022,349.46/11,928.36
  6. Step 6: Final answer
    x = 9,139.76

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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.