Home / 7,619.13-11,409.12-5,275.80

Finding the Fourth Proportional to 7,619.13, 11,409.12 and 5,275.80

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Solution

The fourth proportional to 7,619.13, 11,409.12 and 5,275.80 is: 7,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.13 : 11,409.12 = 5,275.80 : x
  2. Step 2: Convert to fraction form
    7,619.13/11,409.12 = 5,275.80/x
  3. Step 3: Cross multiply
    7,619.13x = 11,409.12 × 5,275.80
  4. Step 4: Simplify right side
    7,619.13x = 60,192,235.30
  5. Step 5: Solve for x
    x = 60,192,235.30/7,619.13
  6. Step 6: Final answer
    x = 7,900.15

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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.