Home / 18,821.62-25,973.85-10,438.18

Finding the Fourth Proportional to 18,821.62, 25,973.85 and 10,438.18

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Solution

The fourth proportional to 18,821.62, 25,973.85 and 10,438.18 is: 14,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.62 : 25,973.85 = 10,438.18 : x
  2. Step 2: Convert to fraction form
    18,821.62/25,973.85 = 10,438.18/x
  3. Step 3: Cross multiply
    18,821.62x = 25,973.85 × 10,438.18
  4. Step 4: Simplify right side
    18,821.62x = 271,119,721.59
  5. Step 5: Solve for x
    x = 271,119,721.59/18,821.62
  6. Step 6: Final answer
    x = 14,404.70

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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.