Home / 18,273.15-25,217.03-9,889.65

Finding the Fourth Proportional to 18,273.15, 25,217.03 and 9,889.65

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Solution

The fourth proportional to 18,273.15, 25,217.03 and 9,889.65 is: 13,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.15 : 25,217.03 = 9,889.65 : x
  2. Step 2: Convert to fraction form
    18,273.15/25,217.03 = 9,889.65/x
  3. Step 3: Cross multiply
    18,273.15x = 25,217.03 × 9,889.65
  4. Step 4: Simplify right side
    18,273.15x = 249,387,551.29
  5. Step 5: Solve for x
    x = 249,387,551.29/18,273.15
  6. Step 6: Final answer
    x = 13,647.76

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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.