Home / 7,621.83-10,516.23-4,789.68

Finding the Fourth Proportional to 7,621.83, 10,516.23 and 4,789.68

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Solution

The fourth proportional to 7,621.83, 10,516.23 and 4,789.68 is: 6,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.83 : 10,516.23 = 4,789.68 : x
  2. Step 2: Convert to fraction form
    7,621.83/10,516.23 = 4,789.68/x
  3. Step 3: Cross multiply
    7,621.83x = 10,516.23 × 4,789.68
  4. Step 4: Simplify right side
    7,621.83x = 50,369,376.51
  5. Step 5: Solve for x
    x = 50,369,376.51/7,621.83
  6. Step 6: Final answer
    x = 6,608.57

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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.