Home / 18,839.70-25,999.50-10,457.82

Finding the Fourth Proportional to 18,839.70, 25,999.50 and 10,457.82

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Solution

The fourth proportional to 18,839.70, 25,999.50 and 10,457.82 is: 14,432.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.70 : 25,999.50 = 10,457.82 : x
  2. Step 2: Convert to fraction form
    18,839.70/25,999.50 = 10,457.82/x
  3. Step 3: Cross multiply
    18,839.70x = 25,999.50 × 10,457.82
  4. Step 4: Simplify right side
    18,839.70x = 271,898,091.09
  5. Step 5: Solve for x
    x = 271,898,091.09/18,839.70
  6. Step 6: Final answer
    x = 14,432.19

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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.