Home / 9,156.48-13,725.12-4,769.28

Finding the Fourth Proportional to 9,156.48, 13,725.12 and 4,769.28

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Solution

The fourth proportional to 9,156.48, 13,725.12 and 4,769.28 is: 7,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.48 : 13,725.12 = 4,769.28 : x
  2. Step 2: Convert to fraction form
    9,156.48/13,725.12 = 4,769.28/x
  3. Step 3: Cross multiply
    9,156.48x = 13,725.12 × 4,769.28
  4. Step 4: Simplify right side
    9,156.48x = 65,458,940.31
  5. Step 5: Solve for x
    x = 65,458,940.31/9,156.48
  6. Step 6: Final answer
    x = 7,148.92

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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.