Home / 12,579.30-17,359.47-6,914.63

Finding the Fourth Proportional to 12,579.30, 17,359.47 and 6,914.63

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Solution

The fourth proportional to 12,579.30, 17,359.47 and 6,914.63 is: 9,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.30 : 17,359.47 = 6,914.63 : x
  2. Step 2: Convert to fraction form
    12,579.30/17,359.47 = 6,914.63/x
  3. Step 3: Cross multiply
    12,579.30x = 17,359.47 × 6,914.63
  4. Step 4: Simplify right side
    12,579.30x = 120,034,329.33
  5. Step 5: Solve for x
    x = 120,034,329.33/12,579.30
  6. Step 6: Final answer
    x = 9,542.21

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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.