Home / 9,579.35-13,219.37-5,387.60

Finding the Fourth Proportional to 9,579.35, 13,219.37 and 5,387.60

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Solution

The fourth proportional to 9,579.35, 13,219.37 and 5,387.60 is: 7,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.35 : 13,219.37 = 5,387.60 : x
  2. Step 2: Convert to fraction form
    9,579.35/13,219.37 = 5,387.60/x
  3. Step 3: Cross multiply
    9,579.35x = 13,219.37 × 5,387.60
  4. Step 4: Simplify right side
    9,579.35x = 71,220,724.33
  5. Step 5: Solve for x
    x = 71,220,724.33/9,579.35
  6. Step 6: Final answer
    x = 7,434.82

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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.