Home / 11,483.32-15,845.75-6,448.09

Finding the Fourth Proportional to 11,483.32, 15,845.75 and 6,448.09

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Solution

The fourth proportional to 11,483.32, 15,845.75 and 6,448.09 is: 8,897.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,483.32 : 15,845.75 = 6,448.09 : x
  2. Step 2: Convert to fraction form
    11,483.32/15,845.75 = 6,448.09/x
  3. Step 3: Cross multiply
    11,483.32x = 15,845.75 × 6,448.09
  4. Step 4: Simplify right side
    11,483.32x = 102,174,742.89
  5. Step 5: Solve for x
    x = 102,174,742.89/11,483.32
  6. Step 6: Final answer
    x = 8,897.67

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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.