Home / 7,971.36-11,002.16-5,458.56

Finding the Fourth Proportional to 7,971.36, 11,002.16 and 5,458.56

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Solution

The fourth proportional to 7,971.36, 11,002.16 and 5,458.56 is: 7,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.36 : 11,002.16 = 5,458.56 : x
  2. Step 2: Convert to fraction form
    7,971.36/11,002.16 = 5,458.56/x
  3. Step 3: Cross multiply
    7,971.36x = 11,002.16 × 5,458.56
  4. Step 4: Simplify right side
    7,971.36x = 60,055,950.49
  5. Step 5: Solve for x
    x = 60,055,950.49/7,971.36
  6. Step 6: Final answer
    x = 7,533.97

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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.