Home / 18,381.30-25,365.18-10,423.32

Finding the Fourth Proportional to 18,381.30, 25,365.18 and 10,423.32

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Solution

The fourth proportional to 18,381.30, 25,365.18 and 10,423.32 is: 14,383.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.30 : 25,365.18 = 10,423.32 : x
  2. Step 2: Convert to fraction form
    18,381.30/25,365.18 = 10,423.32/x
  3. Step 3: Cross multiply
    18,381.30x = 25,365.18 × 10,423.32
  4. Step 4: Simplify right side
    18,381.30x = 264,389,388.00
  5. Step 5: Solve for x
    x = 264,389,388.00/18,381.30
  6. Step 6: Final answer
    x = 14,383.61

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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.