Home / 6,815.56-9,405.58-4,021.06

Finding the Fourth Proportional to 6,815.56, 9,405.58 and 4,021.06

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Solution

The fourth proportional to 6,815.56, 9,405.58 and 4,021.06 is: 5,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.56 : 9,405.58 = 4,021.06 : x
  2. Step 2: Convert to fraction form
    6,815.56/9,405.58 = 4,021.06/x
  3. Step 3: Cross multiply
    6,815.56x = 9,405.58 × 4,021.06
  4. Step 4: Simplify right side
    6,815.56x = 37,820,401.51
  5. Step 5: Solve for x
    x = 37,820,401.51/6,815.56
  6. Step 6: Final answer
    x = 5,549.13

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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.