Home / 11,928.28-16,457.70-7,456.59

Finding the Fourth Proportional to 11,928.28, 16,457.70 and 7,456.59

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Solution

The fourth proportional to 11,928.28, 16,457.70 and 7,456.59 is: 10,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.28 : 16,457.70 = 7,456.59 : x
  2. Step 2: Convert to fraction form
    11,928.28/16,457.70 = 7,456.59/x
  3. Step 3: Cross multiply
    11,928.28x = 16,457.70 × 7,456.59
  4. Step 4: Simplify right side
    11,928.28x = 122,718,321.24
  5. Step 5: Solve for x
    x = 122,718,321.24/11,928.28
  6. Step 6: Final answer
    x = 10,288.01

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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.