Home / 7,387.80-10,193.34-4,515.79

Finding the Fourth Proportional to 7,387.80, 10,193.34 and 4,515.79

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Solution

The fourth proportional to 7,387.80, 10,193.34 and 4,515.79 is: 6,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.80 : 10,193.34 = 4,515.79 : x
  2. Step 2: Convert to fraction form
    7,387.80/10,193.34 = 4,515.79/x
  3. Step 3: Cross multiply
    7,387.80x = 10,193.34 × 4,515.79
  4. Step 4: Simplify right side
    7,387.80x = 46,030,982.84
  5. Step 5: Solve for x
    x = 46,030,982.84/7,387.80
  6. Step 6: Final answer
    x = 6,230.68

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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.