Home / 18,479.96-25,505.45-10,521.08

Finding the Fourth Proportional to 18,479.96, 25,505.45 and 10,521.08

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Solution

The fourth proportional to 18,479.96, 25,505.45 and 10,521.08 is: 14,520.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.96 : 25,505.45 = 10,521.08 : x
  2. Step 2: Convert to fraction form
    18,479.96/25,505.45 = 10,521.08/x
  3. Step 3: Cross multiply
    18,479.96x = 25,505.45 × 10,521.08
  4. Step 4: Simplify right side
    18,479.96x = 268,344,879.89
  5. Step 5: Solve for x
    x = 268,344,879.89/18,479.96
  6. Step 6: Final answer
    x = 14,520.86

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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.