Home / 11,212.92-15,477.18-6,499.32

Finding the Fourth Proportional to 11,212.92, 15,477.18 and 6,499.32

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Solution

The fourth proportional to 11,212.92, 15,477.18 and 6,499.32 is: 8,971.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.92 : 15,477.18 = 6,499.32 : x
  2. Step 2: Convert to fraction form
    11,212.92/15,477.18 = 6,499.32/x
  3. Step 3: Cross multiply
    11,212.92x = 15,477.18 × 6,499.32
  4. Step 4: Simplify right side
    11,212.92x = 100,591,145.52
  5. Step 5: Solve for x
    x = 100,591,145.52/11,212.92
  6. Step 6: Final answer
    x = 8,971.00

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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.