Home / 13,772.43-20,658.51-4,284.63

Finding the Fourth Proportional to 13,772.43, 20,658.51 and 4,284.63

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Solution

The fourth proportional to 13,772.43, 20,658.51 and 4,284.63 is: 6,426.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.43 : 20,658.51 = 4,284.63 : x
  2. Step 2: Convert to fraction form
    13,772.43/20,658.51 = 4,284.63/x
  3. Step 3: Cross multiply
    13,772.43x = 20,658.51 × 4,284.63
  4. Step 4: Simplify right side
    13,772.43x = 88,514,071.70
  5. Step 5: Solve for x
    x = 88,514,071.70/13,772.43
  6. Step 6: Final answer
    x = 6,426.90

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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.