Home / 7,165.04-9,888.68-4,021.22

Finding the Fourth Proportional to 7,165.04, 9,888.68 and 4,021.22

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Solution

The fourth proportional to 7,165.04, 9,888.68 and 4,021.22 is: 5,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.04 : 9,888.68 = 4,021.22 : x
  2. Step 2: Convert to fraction form
    7,165.04/9,888.68 = 4,021.22/x
  3. Step 3: Cross multiply
    7,165.04x = 9,888.68 × 4,021.22
  4. Step 4: Simplify right side
    7,165.04x = 39,764,562.41
  5. Step 5: Solve for x
    x = 39,764,562.41/7,165.04
  6. Step 6: Final answer
    x = 5,549.81

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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.