Home / 12,441.88-18,748.60-10,298.80

Finding the Fourth Proportional to 12,441.88, 18,748.60 and 10,298.80

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Solution

The fourth proportional to 12,441.88, 18,748.60 and 10,298.80 is: 15,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.88 : 18,748.60 = 10,298.80 : x
  2. Step 2: Convert to fraction form
    12,441.88/18,748.60 = 10,298.80/x
  3. Step 3: Cross multiply
    12,441.88x = 18,748.60 × 10,298.80
  4. Step 4: Simplify right side
    12,441.88x = 193,088,081.68
  5. Step 5: Solve for x
    x = 193,088,081.68/12,441.88
  6. Step 6: Final answer
    x = 15,519.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.