Home / 18,470.30-25,489.99-10,515.08

Finding the Fourth Proportional to 18,470.30, 25,489.99 and 10,515.08

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Solution

The fourth proportional to 18,470.30, 25,489.99 and 10,515.08 is: 14,511.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.30 : 25,489.99 = 10,515.08 : x
  2. Step 2: Convert to fraction form
    18,470.30/25,489.99 = 10,515.08/x
  3. Step 3: Cross multiply
    18,470.30x = 25,489.99 × 10,515.08
  4. Step 4: Simplify right side
    18,470.30x = 268,029,360.92
  5. Step 5: Solve for x
    x = 268,029,360.92/18,470.30
  6. Step 6: Final answer
    x = 14,511.37

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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.