Home / 13,748.61-18,974.31-8,080.52

Finding the Fourth Proportional to 13,748.61, 18,974.31 and 8,080.52

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Solution

The fourth proportional to 13,748.61, 18,974.31 and 8,080.52 is: 11,151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.61 : 18,974.31 = 8,080.52 : x
  2. Step 2: Convert to fraction form
    13,748.61/18,974.31 = 8,080.52/x
  3. Step 3: Cross multiply
    13,748.61x = 18,974.31 × 8,080.52
  4. Step 4: Simplify right side
    13,748.61x = 153,322,356.50
  5. Step 5: Solve for x
    x = 153,322,356.50/13,748.61
  6. Step 6: Final answer
    x = 11,151.84

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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.