Home / 6,315.13-9,474.37-2,155.13

Finding the Fourth Proportional to 6,315.13, 9,474.37 and 2,155.13

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Solution

The fourth proportional to 6,315.13, 9,474.37 and 2,155.13 is: 3,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.13 : 9,474.37 = 2,155.13 : x
  2. Step 2: Convert to fraction form
    6,315.13/9,474.37 = 2,155.13/x
  3. Step 3: Cross multiply
    6,315.13x = 9,474.37 × 2,155.13
  4. Step 4: Simplify right side
    6,315.13x = 20,418,535.00
  5. Step 5: Solve for x
    x = 20,418,535.00/6,315.13
  6. Step 6: Final answer
    x = 3,233.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.