Home / 18,416.20-25,412.10-12,460.84

Finding the Fourth Proportional to 18,416.20, 25,412.10 and 12,460.84

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Solution

The fourth proportional to 18,416.20, 25,412.10 and 12,460.84 is: 17,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,416.20 : 25,412.10 = 12,460.84 : x
  2. Step 2: Convert to fraction form
    18,416.20/25,412.10 = 12,460.84/x
  3. Step 3: Cross multiply
    18,416.20x = 25,412.10 × 12,460.84
  4. Step 4: Simplify right side
    18,416.20x = 316,656,112.16
  5. Step 5: Solve for x
    x = 316,656,112.16/18,416.20
  6. Step 6: Final answer
    x = 17,194.43

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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.