Home / 12,579.44-17,359.26-7,275.20

Finding the Fourth Proportional to 12,579.44, 17,359.26 and 7,275.20

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Solution

The fourth proportional to 12,579.44, 17,359.26 and 7,275.20 is: 10,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.44 : 17,359.26 = 7,275.20 : x
  2. Step 2: Convert to fraction form
    12,579.44/17,359.26 = 7,275.20/x
  3. Step 3: Cross multiply
    12,579.44x = 17,359.26 × 7,275.20
  4. Step 4: Simplify right side
    12,579.44x = 126,292,088.35
  5. Step 5: Solve for x
    x = 126,292,088.35/12,579.44
  6. Step 6: Final answer
    x = 10,039.56

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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.