Home / 18,457.20-25,463.70-11,371.32

Finding the Fourth Proportional to 18,457.20, 25,463.70 and 11,371.32

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Solution

The fourth proportional to 18,457.20, 25,463.70 and 11,371.32 is: 15,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.20 : 25,463.70 = 11,371.32 : x
  2. Step 2: Convert to fraction form
    18,457.20/25,463.70 = 11,371.32/x
  3. Step 3: Cross multiply
    18,457.20x = 25,463.70 × 11,371.32
  4. Step 4: Simplify right side
    18,457.20x = 289,555,881.08
  5. Step 5: Solve for x
    x = 289,555,881.08/18,457.20
  6. Step 6: Final answer
    x = 15,687.96

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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.