Home / 11,119.10-15,342.32-6,338.84

Finding the Fourth Proportional to 11,119.10, 15,342.32 and 6,338.84

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Solution

The fourth proportional to 11,119.10, 15,342.32 and 6,338.84 is: 8,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.10 : 15,342.32 = 6,338.84 : x
  2. Step 2: Convert to fraction form
    11,119.10/15,342.32 = 6,338.84/x
  3. Step 3: Cross multiply
    11,119.10x = 15,342.32 × 6,338.84
  4. Step 4: Simplify right side
    11,119.10x = 97,252,450.84
  5. Step 5: Solve for x
    x = 97,252,450.84/11,119.10
  6. Step 6: Final answer
    x = 8,746.44

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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.