Home / 18,350.30-25,309.32-12,372.50

Finding the Fourth Proportional to 18,350.30, 25,309.32 and 12,372.50

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Solution

The fourth proportional to 18,350.30, 25,309.32 and 12,372.50 is: 17,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.30 : 25,309.32 = 12,372.50 : x
  2. Step 2: Convert to fraction form
    18,350.30/25,309.32 = 12,372.50/x
  3. Step 3: Cross multiply
    18,350.30x = 25,309.32 × 12,372.50
  4. Step 4: Simplify right side
    18,350.30x = 313,139,561.70
  5. Step 5: Solve for x
    x = 313,139,561.70/18,350.30
  6. Step 6: Final answer
    x = 17,064.55

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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.