Home / 7,356.91-10,152.43-3,999.70

Finding the Fourth Proportional to 7,356.91, 10,152.43 and 3,999.70

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Solution

The fourth proportional to 7,356.91, 10,152.43 and 3,999.70 is: 5,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,356.91 : 10,152.43 = 3,999.70 : x
  2. Step 2: Convert to fraction form
    7,356.91/10,152.43 = 3,999.70/x
  3. Step 3: Cross multiply
    7,356.91x = 10,152.43 × 3,999.70
  4. Step 4: Simplify right side
    7,356.91x = 40,606,674.27
  5. Step 5: Solve for x
    x = 40,606,674.27/7,356.91
  6. Step 6: Final answer
    x = 5,519.53

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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.