Home / 18,343.48-25,312.62-10,383.88

Finding the Fourth Proportional to 18,343.48, 25,312.62 and 10,383.88

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Solution

The fourth proportional to 18,343.48, 25,312.62 and 10,383.88 is: 14,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.48 : 25,312.62 = 10,383.88 : x
  2. Step 2: Convert to fraction form
    18,343.48/25,312.62 = 10,383.88/x
  3. Step 3: Cross multiply
    18,343.48x = 25,312.62 × 10,383.88
  4. Step 4: Simplify right side
    18,343.48x = 262,843,208.57
  5. Step 5: Solve for x
    x = 262,843,208.57/18,343.48
  6. Step 6: Final answer
    x = 14,328.97

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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.