Home / 11,155.92-16,727.16-7,689.36

Finding the Fourth Proportional to 11,155.92, 16,727.16 and 7,689.36

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Solution

The fourth proportional to 11,155.92, 16,727.16 and 7,689.36 is: 11,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.92 : 16,727.16 = 7,689.36 : x
  2. Step 2: Convert to fraction form
    11,155.92/16,727.16 = 7,689.36/x
  3. Step 3: Cross multiply
    11,155.92x = 16,727.16 × 7,689.36
  4. Step 4: Simplify right side
    11,155.92x = 128,621,155.02
  5. Step 5: Solve for x
    x = 128,621,155.02/11,155.92
  6. Step 6: Final answer
    x = 11,529.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.