Home / 18,361.92-25,336.32-10,402.50

Finding the Fourth Proportional to 18,361.92, 25,336.32 and 10,402.50

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Solution

The fourth proportional to 18,361.92, 25,336.32 and 10,402.50 is: 14,353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.92 : 25,336.32 = 10,402.50 : x
  2. Step 2: Convert to fraction form
    18,361.92/25,336.32 = 10,402.50/x
  3. Step 3: Cross multiply
    18,361.92x = 25,336.32 × 10,402.50
  4. Step 4: Simplify right side
    18,361.92x = 263,561,068.80
  5. Step 5: Solve for x
    x = 263,561,068.80/18,361.92
  6. Step 6: Final answer
    x = 14,353.68

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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.