Home / 18,347.22-25,318.98-10,387.62

Finding the Fourth Proportional to 18,347.22, 25,318.98 and 10,387.62

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Solution

The fourth proportional to 18,347.22, 25,318.98 and 10,387.62 is: 14,334.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.22 : 25,318.98 = 10,387.62 : x
  2. Step 2: Convert to fraction form
    18,347.22/25,318.98 = 10,387.62/x
  3. Step 3: Cross multiply
    18,347.22x = 25,318.98 × 10,387.62
  4. Step 4: Simplify right side
    18,347.22x = 263,003,943.03
  5. Step 5: Solve for x
    x = 263,003,943.03/18,347.22
  6. Step 6: Final answer
    x = 14,334.81

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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.