Home / 7,645.12-11,441.75-4,569.28

Finding the Fourth Proportional to 7,645.12, 11,441.75 and 4,569.28

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Solution

The fourth proportional to 7,645.12, 11,441.75 and 4,569.28 is: 6,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,645.12 : 11,441.75 = 4,569.28 : x
  2. Step 2: Convert to fraction form
    7,645.12/11,441.75 = 4,569.28/x
  3. Step 3: Cross multiply
    7,645.12x = 11,441.75 × 4,569.28
  4. Step 4: Simplify right side
    7,645.12x = 52,280,479.38
  5. Step 5: Solve for x
    x = 52,280,479.38/7,645.12
  6. Step 6: Final answer
    x = 6,838.42

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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.