Home / 15,629.09-21,568.17-8,555.96

Finding the Fourth Proportional to 15,629.09, 21,568.17 and 8,555.96

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Solution

The fourth proportional to 15,629.09, 21,568.17 and 8,555.96 is: 11,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.09 : 21,568.17 = 8,555.96 : x
  2. Step 2: Convert to fraction form
    15,629.09/21,568.17 = 8,555.96/x
  3. Step 3: Cross multiply
    15,629.09x = 21,568.17 × 8,555.96
  4. Step 4: Simplify right side
    15,629.09x = 184,536,485.80
  5. Step 5: Solve for x
    x = 184,536,485.80/15,629.09
  6. Step 6: Final answer
    x = 11,807.25

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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.