Home / 12,445.35-17,174.50-6,780.43

Finding the Fourth Proportional to 12,445.35, 17,174.50 and 6,780.43

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Solution

The fourth proportional to 12,445.35, 17,174.50 and 6,780.43 is: 9,356.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.35 : 17,174.50 = 6,780.43 : x
  2. Step 2: Convert to fraction form
    12,445.35/17,174.50 = 6,780.43/x
  3. Step 3: Cross multiply
    12,445.35x = 17,174.50 × 6,780.43
  4. Step 4: Simplify right side
    12,445.35x = 116,450,495.04
  5. Step 5: Solve for x
    x = 116,450,495.04/12,445.35
  6. Step 6: Final answer
    x = 9,356.95

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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.