Home / 15,336.12-21,163.30-8,530.10

Finding the Fourth Proportional to 15,336.12, 21,163.30 and 8,530.10

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Solution

The fourth proportional to 15,336.12, 21,163.30 and 8,530.10 is: 11,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336.12 : 21,163.30 = 8,530.10 : x
  2. Step 2: Convert to fraction form
    15,336.12/21,163.30 = 8,530.10/x
  3. Step 3: Cross multiply
    15,336.12x = 21,163.30 × 8,530.10
  4. Step 4: Simplify right side
    15,336.12x = 180,525,022.68
  5. Step 5: Solve for x
    x = 180,525,022.68/15,336.12
  6. Step 6: Final answer
    x = 11,771.23

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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.