Home / 18,910.05-28,361.62-9,547.86

Finding the Fourth Proportional to 18,910.05, 28,361.62 and 9,547.86

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Solution

The fourth proportional to 18,910.05, 28,361.62 and 9,547.86 is: 14,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.05 : 28,361.62 = 9,547.86 : x
  2. Step 2: Convert to fraction form
    18,910.05/28,361.62 = 9,547.86/x
  3. Step 3: Cross multiply
    18,910.05x = 28,361.62 × 9,547.86
  4. Step 4: Simplify right side
    18,910.05x = 270,792,777.13
  5. Step 5: Solve for x
    x = 270,792,777.13/18,910.05
  6. Step 6: Final answer
    x = 14,320.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.