Home / 7,548.30-11,309.61-4,911.78

Finding the Fourth Proportional to 7,548.30, 11,309.61 and 4,911.78

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Solution

The fourth proportional to 7,548.30, 11,309.61 and 4,911.78 is: 7,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,548.30 : 11,309.61 = 4,911.78 : x
  2. Step 2: Convert to fraction form
    7,548.30/11,309.61 = 4,911.78/x
  3. Step 3: Cross multiply
    7,548.30x = 11,309.61 × 4,911.78
  4. Step 4: Simplify right side
    7,548.30x = 55,550,316.21
  5. Step 5: Solve for x
    x = 55,550,316.21/7,548.30
  6. Step 6: Final answer
    x = 7,359.31

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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.