Home / 7,631.70-10,584.74-7,485.90

Finding the Fourth Proportional to 7,631.70, 10,584.74 and 7,485.90

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Solution

The fourth proportional to 7,631.70, 10,584.74 and 7,485.90 is: 10,382.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.70 : 10,584.74 = 7,485.90 : x
  2. Step 2: Convert to fraction form
    7,631.70/10,584.74 = 7,485.90/x
  3. Step 3: Cross multiply
    7,631.70x = 10,584.74 × 7,485.90
  4. Step 4: Simplify right side
    7,631.70x = 79,236,267.74
  5. Step 5: Solve for x
    x = 79,236,267.74/7,631.70
  6. Step 6: Final answer
    x = 10,382.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.