Home / 14,588.04-20,128.32-8,615.64

Finding the Fourth Proportional to 14,588.04, 20,128.32 and 8,615.64

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Solution

The fourth proportional to 14,588.04, 20,128.32 and 8,615.64 is: 11,887.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,588.04 : 20,128.32 = 8,615.64 : x
  2. Step 2: Convert to fraction form
    14,588.04/20,128.32 = 8,615.64/x
  3. Step 3: Cross multiply
    14,588.04x = 20,128.32 × 8,615.64
  4. Step 4: Simplify right side
    14,588.04x = 173,418,358.92
  5. Step 5: Solve for x
    x = 173,418,358.92/14,588.04
  6. Step 6: Final answer
    x = 11,887.71

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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.