Home / 7,028.16-9,711.70-6,686.48

Finding the Fourth Proportional to 7,028.16, 9,711.70 and 6,686.48

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Solution

The fourth proportional to 7,028.16, 9,711.70 and 6,686.48 is: 9,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.16 : 9,711.70 = 6,686.48 : x
  2. Step 2: Convert to fraction form
    7,028.16/9,711.70 = 6,686.48/x
  3. Step 3: Cross multiply
    7,028.16x = 9,711.70 × 6,686.48
  4. Step 4: Simplify right side
    7,028.16x = 64,937,087.82
  5. Step 5: Solve for x
    x = 64,937,087.82/7,028.16
  6. Step 6: Final answer
    x = 9,239.56

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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.