Home / 18,521.32-25,567.63-11,815.74

Finding the Fourth Proportional to 18,521.32, 25,567.63 and 11,815.74

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Solution

The fourth proportional to 18,521.32, 25,567.63 and 11,815.74 is: 16,310.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.32 : 25,567.63 = 11,815.74 : x
  2. Step 2: Convert to fraction form
    18,521.32/25,567.63 = 11,815.74/x
  3. Step 3: Cross multiply
    18,521.32x = 25,567.63 × 11,815.74
  4. Step 4: Simplify right side
    18,521.32x = 302,100,468.50
  5. Step 5: Solve for x
    x = 302,100,468.50/18,521.32
  6. Step 6: Final answer
    x = 16,310.96

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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.