Home / 7,356.81-10,152.60-3,999.85

Finding the Fourth Proportional to 7,356.81, 10,152.60 and 3,999.85

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Solution

The fourth proportional to 7,356.81, 10,152.60 and 3,999.85 is: 5,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,356.81 : 10,152.60 = 3,999.85 : x
  2. Step 2: Convert to fraction form
    7,356.81/10,152.60 = 3,999.85/x
  3. Step 3: Cross multiply
    7,356.81x = 10,152.60 × 3,999.85
  4. Step 4: Simplify right side
    7,356.81x = 40,608,857.11
  5. Step 5: Solve for x
    x = 40,608,857.11/7,356.81
  6. Step 6: Final answer
    x = 5,519.90

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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.