Home / 15,284.57-21,105.18-12,452.41

Finding the Fourth Proportional to 15,284.57, 21,105.18 and 12,452.41

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Solution

The fourth proportional to 15,284.57, 21,105.18 and 12,452.41 is: 17,194.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.57 : 21,105.18 = 12,452.41 : x
  2. Step 2: Convert to fraction form
    15,284.57/21,105.18 = 12,452.41/x
  3. Step 3: Cross multiply
    15,284.57x = 21,105.18 × 12,452.41
  4. Step 4: Simplify right side
    15,284.57x = 262,810,186.70
  5. Step 5: Solve for x
    x = 262,810,186.70/15,284.57
  6. Step 6: Final answer
    x = 17,194.48

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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.