Home / 15,060.45-20,783.13-8,346.05

Finding the Fourth Proportional to 15,060.45, 20,783.13 and 8,346.05

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Solution

The fourth proportional to 15,060.45, 20,783.13 and 8,346.05 is: 11,517.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.45 : 20,783.13 = 8,346.05 : x
  2. Step 2: Convert to fraction form
    15,060.45/20,783.13 = 8,346.05/x
  3. Step 3: Cross multiply
    15,060.45x = 20,783.13 × 8,346.05
  4. Step 4: Simplify right side
    15,060.45x = 173,456,938.22
  5. Step 5: Solve for x
    x = 173,456,938.22/15,060.45
  6. Step 6: Final answer
    x = 11,517.38

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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.