Home / 18,605.06-25,674.86-10,221.50

Finding the Fourth Proportional to 18,605.06, 25,674.86 and 10,221.50

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Solution

The fourth proportional to 18,605.06, 25,674.86 and 10,221.50 is: 14,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.06 : 25,674.86 = 10,221.50 : x
  2. Step 2: Convert to fraction form
    18,605.06/25,674.86 = 10,221.50/x
  3. Step 3: Cross multiply
    18,605.06x = 25,674.86 × 10,221.50
  4. Step 4: Simplify right side
    18,605.06x = 262,435,581.49
  5. Step 5: Solve for x
    x = 262,435,581.49/18,605.06
  6. Step 6: Final answer
    x = 14,105.60

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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.