Home / 7,620.55-10,515.39-4,434.87

Finding the Fourth Proportional to 7,620.55, 10,515.39 and 4,434.87

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Solution

The fourth proportional to 7,620.55, 10,515.39 and 4,434.87 is: 6,119.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.55 : 10,515.39 = 4,434.87 : x
  2. Step 2: Convert to fraction form
    7,620.55/10,515.39 = 4,434.87/x
  3. Step 3: Cross multiply
    7,620.55x = 10,515.39 × 4,434.87
  4. Step 4: Simplify right side
    7,620.55x = 46,634,410.45
  5. Step 5: Solve for x
    x = 46,634,410.45/7,620.55
  6. Step 6: Final answer
    x = 6,119.56

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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.