Home / 7,009.20-10,519.00-4,380.55

Finding the Fourth Proportional to 7,009.20, 10,519.00 and 4,380.55

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Solution

The fourth proportional to 7,009.20, 10,519.00 and 4,380.55 is: 6,574.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.20 : 10,519.00 = 4,380.55 : x
  2. Step 2: Convert to fraction form
    7,009.20/10,519.00 = 4,380.55/x
  3. Step 3: Cross multiply
    7,009.20x = 10,519.00 × 4,380.55
  4. Step 4: Simplify right side
    7,009.20x = 46,078,968.20
  5. Step 5: Solve for x
    x = 46,078,968.20/7,009.20
  6. Step 6: Final answer
    x = 6,574.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.