Home / 7,640.55-11,458.08-4,133.15

Finding the Fourth Proportional to 7,640.55, 11,458.08 and 4,133.15

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Solution

The fourth proportional to 7,640.55, 11,458.08 and 4,133.15 is: 6,198.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.55 : 11,458.08 = 4,133.15 : x
  2. Step 2: Convert to fraction form
    7,640.55/11,458.08 = 4,133.15/x
  3. Step 3: Cross multiply
    7,640.55x = 11,458.08 × 4,133.15
  4. Step 4: Simplify right side
    7,640.55x = 47,357,916.39
  5. Step 5: Solve for x
    x = 47,357,916.39/7,640.55
  6. Step 6: Final answer
    x = 6,198.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.