Home / 13,090.27-18,063.20-7,423.20

Finding the Fourth Proportional to 13,090.27, 18,063.20 and 7,423.20

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Solution

The fourth proportional to 13,090.27, 18,063.20 and 7,423.20 is: 10,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.27 : 18,063.20 = 7,423.20 : x
  2. Step 2: Convert to fraction form
    13,090.27/18,063.20 = 7,423.20/x
  3. Step 3: Cross multiply
    13,090.27x = 18,063.20 × 7,423.20
  4. Step 4: Simplify right side
    13,090.27x = 134,086,709.12
  5. Step 5: Solve for x
    x = 134,086,709.12/13,090.27
  6. Step 6: Final answer
    x = 10,243.24

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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.