Home / 18,402.60-25,396.37-10,445.57

Finding the Fourth Proportional to 18,402.60, 25,396.37 and 10,445.57

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Solution

The fourth proportional to 18,402.60, 25,396.37 and 10,445.57 is: 14,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.60 : 25,396.37 = 10,445.57 : x
  2. Step 2: Convert to fraction form
    18,402.60/25,396.37 = 10,445.57/x
  3. Step 3: Cross multiply
    18,402.60x = 25,396.37 × 10,445.57
  4. Step 4: Simplify right side
    18,402.60x = 265,279,560.58
  5. Step 5: Solve for x
    x = 265,279,560.58/18,402.60
  6. Step 6: Final answer
    x = 14,415.33

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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.