Home / 18,813.16-28,224.45-13,277.32

Finding the Fourth Proportional to 18,813.16, 28,224.45 and 13,277.32

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Solution

The fourth proportional to 18,813.16, 28,224.45 and 13,277.32 is: 19,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.16 : 28,224.45 = 13,277.32 : x
  2. Step 2: Convert to fraction form
    18,813.16/28,224.45 = 13,277.32/x
  3. Step 3: Cross multiply
    18,813.16x = 28,224.45 × 13,277.32
  4. Step 4: Simplify right side
    18,813.16x = 374,744,983.91
  5. Step 5: Solve for x
    x = 374,744,983.91/18,813.16
  6. Step 6: Final answer
    x = 19,919.30

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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.