Home / 6,420.24-9,608.45-5,381.42

Finding the Fourth Proportional to 6,420.24, 9,608.45 and 5,381.42

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Solution

The fourth proportional to 6,420.24, 9,608.45 and 5,381.42 is: 8,053.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.24 : 9,608.45 = 5,381.42 : x
  2. Step 2: Convert to fraction form
    6,420.24/9,608.45 = 5,381.42/x
  3. Step 3: Cross multiply
    6,420.24x = 9,608.45 × 5,381.42
  4. Step 4: Simplify right side
    6,420.24x = 51,707,030.05
  5. Step 5: Solve for x
    x = 51,707,030.05/6,420.24
  6. Step 6: Final answer
    x = 8,053.75

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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.