Home / 18,838.85-25,998.77-10,455.35

Finding the Fourth Proportional to 18,838.85, 25,998.77 and 10,455.35

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Solution

The fourth proportional to 18,838.85, 25,998.77 and 10,455.35 is: 14,429.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.85 : 25,998.77 = 10,455.35 : x
  2. Step 2: Convert to fraction form
    18,838.85/25,998.77 = 10,455.35/x
  3. Step 3: Cross multiply
    18,838.85x = 25,998.77 × 10,455.35
  4. Step 4: Simplify right side
    18,838.85x = 271,826,136.06
  5. Step 5: Solve for x
    x = 271,826,136.06/18,838.85
  6. Step 6: Final answer
    x = 14,429.02

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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.