Home / 12,424.19-17,136.65-8,173.89

Finding the Fourth Proportional to 12,424.19, 17,136.65 and 8,173.89

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Solution

The fourth proportional to 12,424.19, 17,136.65 and 8,173.89 is: 11,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.19 : 17,136.65 = 8,173.89 : x
  2. Step 2: Convert to fraction form
    12,424.19/17,136.65 = 8,173.89/x
  3. Step 3: Cross multiply
    12,424.19x = 17,136.65 × 8,173.89
  4. Step 4: Simplify right side
    12,424.19x = 140,073,112.50
  5. Step 5: Solve for x
    x = 140,073,112.50/12,424.19
  6. Step 6: Final answer
    x = 11,274.22

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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.