Home / 11,821.38-16,303.56-7,104.74

Finding the Fourth Proportional to 11,821.38, 16,303.56 and 7,104.74

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Solution

The fourth proportional to 11,821.38, 16,303.56 and 7,104.74 is: 9,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.38 : 16,303.56 = 7,104.74 : x
  2. Step 2: Convert to fraction form
    11,821.38/16,303.56 = 7,104.74/x
  3. Step 3: Cross multiply
    11,821.38x = 16,303.56 × 7,104.74
  4. Step 4: Simplify right side
    11,821.38x = 115,832,554.87
  5. Step 5: Solve for x
    x = 115,832,554.87/11,821.38
  6. Step 6: Final answer
    x = 9,798.56

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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.