Home / 9,628.75-13,287.51-5,379.87

Finding the Fourth Proportional to 9,628.75, 13,287.51 and 5,379.87

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Solution

The fourth proportional to 9,628.75, 13,287.51 and 5,379.87 is: 7,424.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,628.75 : 13,287.51 = 5,379.87 : x
  2. Step 2: Convert to fraction form
    9,628.75/13,287.51 = 5,379.87/x
  3. Step 3: Cross multiply
    9,628.75x = 13,287.51 × 5,379.87
  4. Step 4: Simplify right side
    9,628.75x = 71,485,076.42
  5. Step 5: Solve for x
    x = 71,485,076.42/9,628.75
  6. Step 6: Final answer
    x = 7,424.13

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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.