Home / 15,806.37-21,813.12-8,732.64

Finding the Fourth Proportional to 15,806.37, 21,813.12 and 8,732.64

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Solution

The fourth proportional to 15,806.37, 21,813.12 and 8,732.64 is: 12,051.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.37 : 21,813.12 = 8,732.64 : x
  2. Step 2: Convert to fraction form
    15,806.37/21,813.12 = 8,732.64/x
  3. Step 3: Cross multiply
    15,806.37x = 21,813.12 × 8,732.64
  4. Step 4: Simplify right side
    15,806.37x = 190,486,124.24
  5. Step 5: Solve for x
    x = 190,486,124.24/15,806.37
  6. Step 6: Final answer
    x = 12,051.23

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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.