Home / 7,630.39-10,529.76-4,486.78

Finding the Fourth Proportional to 7,630.39, 10,529.76 and 4,486.78

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Solution

The fourth proportional to 7,630.39, 10,529.76 and 4,486.78 is: 6,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.39 : 10,529.76 = 4,486.78 : x
  2. Step 2: Convert to fraction form
    7,630.39/10,529.76 = 4,486.78/x
  3. Step 3: Cross multiply
    7,630.39x = 10,529.76 × 4,486.78
  4. Step 4: Simplify right side
    7,630.39x = 47,244,716.57
  5. Step 5: Solve for x
    x = 47,244,716.57/7,630.39
  6. Step 6: Final answer
    x = 6,191.65

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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.