Home / 15,113.32-20,857.38-8,741.20

Finding the Fourth Proportional to 15,113.32, 20,857.38 and 8,741.20

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Solution

The fourth proportional to 15,113.32, 20,857.38 and 8,741.20 is: 12,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.32 : 20,857.38 = 8,741.20 : x
  2. Step 2: Convert to fraction form
    15,113.32/20,857.38 = 8,741.20/x
  3. Step 3: Cross multiply
    15,113.32x = 20,857.38 × 8,741.20
  4. Step 4: Simplify right side
    15,113.32x = 182,318,530.06
  5. Step 5: Solve for x
    x = 182,318,530.06/15,113.32
  6. Step 6: Final answer
    x = 12,063.43

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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.