Home / 7,704.24-10,628.28-4,870.32

Finding the Fourth Proportional to 7,704.24, 10,628.28 and 4,870.32

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Solution

The fourth proportional to 7,704.24, 10,628.28 and 4,870.32 is: 6,718.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.24 : 10,628.28 = 4,870.32 : x
  2. Step 2: Convert to fraction form
    7,704.24/10,628.28 = 4,870.32/x
  3. Step 3: Cross multiply
    7,704.24x = 10,628.28 × 4,870.32
  4. Step 4: Simplify right side
    7,704.24x = 51,763,124.65
  5. Step 5: Solve for x
    x = 51,763,124.65/7,704.24
  6. Step 6: Final answer
    x = 6,718.78

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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.