Home / 15,057.21-20,785.80-10,753.53

Finding the Fourth Proportional to 15,057.21, 20,785.80 and 10,753.53

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Solution

The fourth proportional to 15,057.21, 20,785.80 and 10,753.53 is: 14,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057.21 : 20,785.80 = 10,753.53 : x
  2. Step 2: Convert to fraction form
    15,057.21/20,785.80 = 10,753.53/x
  3. Step 3: Cross multiply
    15,057.21x = 20,785.80 × 10,753.53
  4. Step 4: Simplify right side
    15,057.21x = 223,520,723.87
  5. Step 5: Solve for x
    x = 223,520,723.87/15,057.21
  6. Step 6: Final answer
    x = 14,844.76

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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.