Home / 13,488.64-18,592.68-8,173.42

Finding the Fourth Proportional to 13,488.64, 18,592.68 and 8,173.42

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Solution

The fourth proportional to 13,488.64, 18,592.68 and 8,173.42 is: 11,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.64 : 18,592.68 = 8,173.42 : x
  2. Step 2: Convert to fraction form
    13,488.64/18,592.68 = 8,173.42/x
  3. Step 3: Cross multiply
    13,488.64x = 18,592.68 × 8,173.42
  4. Step 4: Simplify right side
    13,488.64x = 151,965,782.57
  5. Step 5: Solve for x
    x = 151,965,782.57/13,488.64
  6. Step 6: Final answer
    x = 11,266.20

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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.