Home / 7,415.31-10,230.62-5,028.51

Finding the Fourth Proportional to 7,415.31, 10,230.62 and 5,028.51

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Solution

The fourth proportional to 7,415.31, 10,230.62 and 5,028.51 is: 6,937.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.31 : 10,230.62 = 5,028.51 : x
  2. Step 2: Convert to fraction form
    7,415.31/10,230.62 = 5,028.51/x
  3. Step 3: Cross multiply
    7,415.31x = 10,230.62 × 5,028.51
  4. Step 4: Simplify right side
    7,415.31x = 51,444,749.83
  5. Step 5: Solve for x
    x = 51,444,749.83/7,415.31
  6. Step 6: Final answer
    x = 6,937.64

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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.