Home / 18,763.79-25,889.76-11,208.92

Finding the Fourth Proportional to 18,763.79, 25,889.76 and 11,208.92

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Solution

The fourth proportional to 18,763.79, 25,889.76 and 11,208.92 is: 15,465.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.79 : 25,889.76 = 11,208.92 : x
  2. Step 2: Convert to fraction form
    18,763.79/25,889.76 = 11,208.92/x
  3. Step 3: Cross multiply
    18,763.79x = 25,889.76 × 11,208.92
  4. Step 4: Simplify right side
    18,763.79x = 290,196,119.21
  5. Step 5: Solve for x
    x = 290,196,119.21/18,763.79
  6. Step 6: Final answer
    x = 15,465.76

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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.