Home / 18,309.75-25,267.50-9,926.25

Finding the Fourth Proportional to 18,309.75, 25,267.50 and 9,926.25

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Solution

The fourth proportional to 18,309.75, 25,267.50 and 9,926.25 is: 13,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.75 : 25,267.50 = 9,926.25 : x
  2. Step 2: Convert to fraction form
    18,309.75/25,267.50 = 9,926.25/x
  3. Step 3: Cross multiply
    18,309.75x = 25,267.50 × 9,926.25
  4. Step 4: Simplify right side
    18,309.75x = 250,811,521.88
  5. Step 5: Solve for x
    x = 250,811,521.88/18,309.75
  6. Step 6: Final answer
    x = 13,698.25

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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.