Home / 9,619.20-13,276.80-7,257.60

Finding the Fourth Proportional to 9,619.20, 13,276.80 and 7,257.60

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Solution

The fourth proportional to 9,619.20, 13,276.80 and 7,257.60 is: 10,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,619.20 : 13,276.80 = 7,257.60 : x
  2. Step 2: Convert to fraction form
    9,619.20/13,276.80 = 7,257.60/x
  3. Step 3: Cross multiply
    9,619.20x = 13,276.80 × 7,257.60
  4. Step 4: Simplify right side
    9,619.20x = 96,357,703.68
  5. Step 5: Solve for x
    x = 96,357,703.68/9,619.20
  6. Step 6: Final answer
    x = 10,017.23

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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.