Home / 10,949.78-15,110.96-6,477.37

Finding the Fourth Proportional to 10,949.78, 15,110.96 and 6,477.37

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Solution

The fourth proportional to 10,949.78, 15,110.96 and 6,477.37 is: 8,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.78 : 15,110.96 = 6,477.37 : x
  2. Step 2: Convert to fraction form
    10,949.78/15,110.96 = 6,477.37/x
  3. Step 3: Cross multiply
    10,949.78x = 15,110.96 × 6,477.37
  4. Step 4: Simplify right side
    10,949.78x = 97,879,208.81
  5. Step 5: Solve for x
    x = 97,879,208.81/10,949.78
  6. Step 6: Final answer
    x = 8,938.92

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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.