Home / 18,419.86-25,418.64-10,462.06

Finding the Fourth Proportional to 18,419.86, 25,418.64 and 10,462.06

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Solution

The fourth proportional to 18,419.86, 25,418.64 and 10,462.06 is: 14,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.86 : 25,418.64 = 10,462.06 : x
  2. Step 2: Convert to fraction form
    18,419.86/25,418.64 = 10,462.06/x
  3. Step 3: Cross multiply
    18,419.86x = 25,418.64 × 10,462.06
  4. Step 4: Simplify right side
    18,419.86x = 265,931,336.80
  5. Step 5: Solve for x
    x = 265,931,336.80/18,419.86
  6. Step 6: Final answer
    x = 14,437.21

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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.