Home / 13,752.60-18,950.40-11,371.20

Finding the Fourth Proportional to 13,752.60, 18,950.40 and 11,371.20

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Solution

The fourth proportional to 13,752.60, 18,950.40 and 11,371.20 is: 15,668.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.60 : 18,950.40 = 11,371.20 : x
  2. Step 2: Convert to fraction form
    13,752.60/18,950.40 = 11,371.20/x
  3. Step 3: Cross multiply
    13,752.60x = 18,950.40 × 11,371.20
  4. Step 4: Simplify right side
    13,752.60x = 215,488,788.48
  5. Step 5: Solve for x
    x = 215,488,788.48/13,752.60
  6. Step 6: Final answer
    x = 15,668.95

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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.