Home / 12,579.30-17,359.68-6,914.40

Finding the Fourth Proportional to 12,579.30, 17,359.68 and 6,914.40

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Solution

The fourth proportional to 12,579.30, 17,359.68 and 6,914.40 is: 9,542.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.30 : 17,359.68 = 6,914.40 : x
  2. Step 2: Convert to fraction form
    12,579.30/17,359.68 = 6,914.40/x
  3. Step 3: Cross multiply
    12,579.30x = 17,359.68 × 6,914.40
  4. Step 4: Simplify right side
    12,579.30x = 120,031,771.39
  5. Step 5: Solve for x
    x = 120,031,771.39/12,579.30
  6. Step 6: Final answer
    x = 9,542.01

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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.