Home / 18,309.90-25,266.69-10,351.65

Finding the Fourth Proportional to 18,309.90, 25,266.69 and 10,351.65

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Solution

The fourth proportional to 18,309.90, 25,266.69 and 10,351.65 is: 14,284.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.90 : 25,266.69 = 10,351.65 : x
  2. Step 2: Convert to fraction form
    18,309.90/25,266.69 = 10,351.65/x
  3. Step 3: Cross multiply
    18,309.90x = 25,266.69 × 10,351.65
  4. Step 4: Simplify right side
    18,309.90x = 261,551,931.54
  5. Step 5: Solve for x
    x = 261,551,931.54/18,309.90
  6. Step 6: Final answer
    x = 14,284.73

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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.