Home / 18,403.86-25,397.45-10,446.22

Finding the Fourth Proportional to 18,403.86, 25,397.45 and 10,446.22

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Solution

The fourth proportional to 18,403.86, 25,397.45 and 10,446.22 is: 14,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.86 : 25,397.45 = 10,446.22 : x
  2. Step 2: Convert to fraction form
    18,403.86/25,397.45 = 10,446.22/x
  3. Step 3: Cross multiply
    18,403.86x = 25,397.45 × 10,446.22
  4. Step 4: Simplify right side
    18,403.86x = 265,307,297.91
  5. Step 5: Solve for x
    x = 265,307,297.91/18,403.86
  6. Step 6: Final answer
    x = 14,415.85

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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.