Home / 13,696.25-20,565.97-8,525.21

Finding the Fourth Proportional to 13,696.25, 20,565.97 and 8,525.21

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Solution

The fourth proportional to 13,696.25, 20,565.97 and 8,525.21 is: 12,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.25 : 20,565.97 = 8,525.21 : x
  2. Step 2: Convert to fraction form
    13,696.25/20,565.97 = 8,525.21/x
  3. Step 3: Cross multiply
    13,696.25x = 20,565.97 × 8,525.21
  4. Step 4: Simplify right side
    13,696.25x = 175,329,088.96
  5. Step 5: Solve for x
    x = 175,329,088.96/13,696.25
  6. Step 6: Final answer
    x = 12,801.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.