Home / 7,567.20-11,345.40-3,403.80

Finding the Fourth Proportional to 7,567.20, 11,345.40 and 3,403.80

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Solution

The fourth proportional to 7,567.20, 11,345.40 and 3,403.80 is: 5,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,567.20 : 11,345.40 = 3,403.80 : x
  2. Step 2: Convert to fraction form
    7,567.20/11,345.40 = 3,403.80/x
  3. Step 3: Cross multiply
    7,567.20x = 11,345.40 × 3,403.80
  4. Step 4: Simplify right side
    7,567.20x = 38,617,472.52
  5. Step 5: Solve for x
    x = 38,617,472.52/7,567.20
  6. Step 6: Final answer
    x = 5,103.27

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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.