Home / 17,122.40-25,683.60-5,436.50

Finding the Fourth Proportional to 17,122.40, 25,683.60 and 5,436.50

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Solution

The fourth proportional to 17,122.40, 25,683.60 and 5,436.50 is: 8,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,122.40 : 25,683.60 = 5,436.50 : x
  2. Step 2: Convert to fraction form
    17,122.40/25,683.60 = 5,436.50/x
  3. Step 3: Cross multiply
    17,122.40x = 25,683.60 × 5,436.50
  4. Step 4: Simplify right side
    17,122.40x = 139,628,891.40
  5. Step 5: Solve for x
    x = 139,628,891.40/17,122.40
  6. Step 6: Final answer
    x = 8,154.75

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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.