Home / 7,865.24-10,855.42-4,721.63

Finding the Fourth Proportional to 7,865.24, 10,855.42 and 4,721.63

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Solution

The fourth proportional to 7,865.24, 10,855.42 and 4,721.63 is: 6,516.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.24 : 10,855.42 = 4,721.63 : x
  2. Step 2: Convert to fraction form
    7,865.24/10,855.42 = 4,721.63/x
  3. Step 3: Cross multiply
    7,865.24x = 10,855.42 × 4,721.63
  4. Step 4: Simplify right side
    7,865.24x = 51,255,210.65
  5. Step 5: Solve for x
    x = 51,255,210.65/7,865.24
  6. Step 6: Final answer
    x = 6,516.68

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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.