Home / 15,620.64-23,412.52-8,221.29

Finding the Fourth Proportional to 15,620.64, 23,412.52 and 8,221.29

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Solution

The fourth proportional to 15,620.64, 23,412.52 and 8,221.29 is: 12,322.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.64 : 23,412.52 = 8,221.29 : x
  2. Step 2: Convert to fraction form
    15,620.64/23,412.52 = 8,221.29/x
  3. Step 3: Cross multiply
    15,620.64x = 23,412.52 × 8,221.29
  4. Step 4: Simplify right side
    15,620.64x = 192,481,116.55
  5. Step 5: Solve for x
    x = 192,481,116.55/15,620.64
  6. Step 6: Final answer
    x = 12,322.23

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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.