Home / 7,345.80-11,009.88-4,228.02

Finding the Fourth Proportional to 7,345.80, 11,009.88 and 4,228.02

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Solution

The fourth proportional to 7,345.80, 11,009.88 and 4,228.02 is: 6,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.80 : 11,009.88 = 4,228.02 : x
  2. Step 2: Convert to fraction form
    7,345.80/11,009.88 = 4,228.02/x
  3. Step 3: Cross multiply
    7,345.80x = 11,009.88 × 4,228.02
  4. Step 4: Simplify right side
    7,345.80x = 46,549,992.84
  5. Step 5: Solve for x
    x = 46,549,992.84/7,345.80
  6. Step 6: Final answer
    x = 6,336.95

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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.