Home / 15,210.35-20,989.41-8,496.39

Finding the Fourth Proportional to 15,210.35, 20,989.41 and 8,496.39

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Solution

The fourth proportional to 15,210.35, 20,989.41 and 8,496.39 is: 11,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.35 : 20,989.41 = 8,496.39 : x
  2. Step 2: Convert to fraction form
    15,210.35/20,989.41 = 8,496.39/x
  3. Step 3: Cross multiply
    15,210.35x = 20,989.41 × 8,496.39
  4. Step 4: Simplify right side
    15,210.35x = 178,334,213.23
  5. Step 5: Solve for x
    x = 178,334,213.23/15,210.35
  6. Step 6: Final answer
    x = 11,724.53

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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.