Home / 18,498.43-25,532.58-11,420.79

Finding the Fourth Proportional to 18,498.43, 25,532.58 and 11,420.79

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Solution

The fourth proportional to 18,498.43, 25,532.58 and 11,420.79 is: 15,763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.43 : 25,532.58 = 11,420.79 : x
  2. Step 2: Convert to fraction form
    18,498.43/25,532.58 = 11,420.79/x
  3. Step 3: Cross multiply
    18,498.43x = 25,532.58 × 11,420.79
  4. Step 4: Simplify right side
    18,498.43x = 291,602,234.34
  5. Step 5: Solve for x
    x = 291,602,234.34/18,498.43
  6. Step 6: Final answer
    x = 15,763.62

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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.