Home / 12,748.87-17,588.52-9,399.64

Finding the Fourth Proportional to 12,748.87, 17,588.52 and 9,399.64

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Solution

The fourth proportional to 12,748.87, 17,588.52 and 9,399.64 is: 12,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.87 : 17,588.52 = 9,399.64 : x
  2. Step 2: Convert to fraction form
    12,748.87/17,588.52 = 9,399.64/x
  3. Step 3: Cross multiply
    12,748.87x = 17,588.52 × 9,399.64
  4. Step 4: Simplify right side
    12,748.87x = 165,325,756.13
  5. Step 5: Solve for x
    x = 165,325,756.13/12,748.87
  6. Step 6: Final answer
    x = 12,967.88

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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.