Home / 7,709.28-10,639.92-5,060.64

Finding the Fourth Proportional to 7,709.28, 10,639.92 and 5,060.64

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Solution

The fourth proportional to 7,709.28, 10,639.92 and 5,060.64 is: 6,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.28 : 10,639.92 = 5,060.64 : x
  2. Step 2: Convert to fraction form
    7,709.28/10,639.92 = 5,060.64/x
  3. Step 3: Cross multiply
    7,709.28x = 10,639.92 × 5,060.64
  4. Step 4: Simplify right side
    7,709.28x = 53,844,804.75
  5. Step 5: Solve for x
    x = 53,844,804.75/7,709.28
  6. Step 6: Final answer
    x = 6,984.41

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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.