Home / 18,403.89-25,395.93-10,447.44

Finding the Fourth Proportional to 18,403.89, 25,395.93 and 10,447.44

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Solution

The fourth proportional to 18,403.89, 25,395.93 and 10,447.44 is: 14,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.89 : 25,395.93 = 10,447.44 : x
  2. Step 2: Convert to fraction form
    18,403.89/25,395.93 = 10,447.44/x
  3. Step 3: Cross multiply
    18,403.89x = 25,395.93 × 10,447.44
  4. Step 4: Simplify right side
    18,403.89x = 265,322,454.92
  5. Step 5: Solve for x
    x = 265,322,454.92/18,403.89
  6. Step 6: Final answer
    x = 14,416.65

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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.