Home / 18,364.45-25,342.49-10,709.12

Finding the Fourth Proportional to 18,364.45, 25,342.49 and 10,709.12

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Solution

The fourth proportional to 18,364.45, 25,342.49 and 10,709.12 is: 14,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.45 : 25,342.49 = 10,709.12 : x
  2. Step 2: Convert to fraction form
    18,364.45/25,342.49 = 10,709.12/x
  3. Step 3: Cross multiply
    18,364.45x = 25,342.49 × 10,709.12
  4. Step 4: Simplify right side
    18,364.45x = 271,395,766.51
  5. Step 5: Solve for x
    x = 271,395,766.51/18,364.45
  6. Step 6: Final answer
    x = 14,778.32

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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.