Home / 11,425.07-15,769.75-7,173.18

Finding the Fourth Proportional to 11,425.07, 15,769.75 and 7,173.18

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Solution

The fourth proportional to 11,425.07, 15,769.75 and 7,173.18 is: 9,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.07 : 15,769.75 = 7,173.18 : x
  2. Step 2: Convert to fraction form
    11,425.07/15,769.75 = 7,173.18/x
  3. Step 3: Cross multiply
    11,425.07x = 15,769.75 × 7,173.18
  4. Step 4: Simplify right side
    11,425.07x = 113,119,255.31
  5. Step 5: Solve for x
    x = 113,119,255.31/11,425.07
  6. Step 6: Final answer
    x = 9,900.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.