Home / 7,474.77-10,311.75-4,485.47

Finding the Fourth Proportional to 7,474.77, 10,311.75 and 4,485.47

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Solution

The fourth proportional to 7,474.77, 10,311.75 and 4,485.47 is: 6,187.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.77 : 10,311.75 = 4,485.47 : x
  2. Step 2: Convert to fraction form
    7,474.77/10,311.75 = 4,485.47/x
  3. Step 3: Cross multiply
    7,474.77x = 10,311.75 × 4,485.47
  4. Step 4: Simplify right side
    7,474.77x = 46,252,993.71
  5. Step 5: Solve for x
    x = 46,252,993.71/7,474.77
  6. Step 6: Final answer
    x = 6,187.88

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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.