Home / 15,147.25-20,903.70-8,341.99

Finding the Fourth Proportional to 15,147.25, 20,903.70 and 8,341.99

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Solution

The fourth proportional to 15,147.25, 20,903.70 and 8,341.99 is: 11,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.25 : 20,903.70 = 8,341.99 : x
  2. Step 2: Convert to fraction form
    15,147.25/20,903.70 = 8,341.99/x
  3. Step 3: Cross multiply
    15,147.25x = 20,903.70 × 8,341.99
  4. Step 4: Simplify right side
    15,147.25x = 174,378,456.36
  5. Step 5: Solve for x
    x = 174,378,456.36/15,147.25
  6. Step 6: Final answer
    x = 11,512.22

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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.