Home / 14,780.71-20,397.43-8,493.09

Finding the Fourth Proportional to 14,780.71, 20,397.43 and 8,493.09

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Solution

The fourth proportional to 14,780.71, 20,397.43 and 8,493.09 is: 11,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.71 : 20,397.43 = 8,493.09 : x
  2. Step 2: Convert to fraction form
    14,780.71/20,397.43 = 8,493.09/x
  3. Step 3: Cross multiply
    14,780.71x = 20,397.43 × 8,493.09
  4. Step 4: Simplify right side
    14,780.71x = 173,237,208.76
  5. Step 5: Solve for x
    x = 173,237,208.76/14,780.71
  6. Step 6: Final answer
    x = 11,720.49

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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.