Home / 13,689.64-20,536.99-4,332.02

Finding the Fourth Proportional to 13,689.64, 20,536.99 and 4,332.02

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Solution

The fourth proportional to 13,689.64, 20,536.99 and 4,332.02 is: 6,498.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689.64 : 20,536.99 = 4,332.02 : x
  2. Step 2: Convert to fraction form
    13,689.64/20,536.99 = 4,332.02/x
  3. Step 3: Cross multiply
    13,689.64x = 20,536.99 × 4,332.02
  4. Step 4: Simplify right side
    13,689.64x = 88,966,562.27
  5. Step 5: Solve for x
    x = 88,966,562.27/13,689.64
  6. Step 6: Final answer
    x = 6,498.82

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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.