Home / 14,885.94-20,543.31-8,171.49

Finding the Fourth Proportional to 14,885.94, 20,543.31 and 8,171.49

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Solution

The fourth proportional to 14,885.94, 20,543.31 and 8,171.49 is: 11,277.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.94 : 20,543.31 = 8,171.49 : x
  2. Step 2: Convert to fraction form
    14,885.94/20,543.31 = 8,171.49/x
  3. Step 3: Cross multiply
    14,885.94x = 20,543.31 × 8,171.49
  4. Step 4: Simplify right side
    14,885.94x = 167,869,452.23
  5. Step 5: Solve for x
    x = 167,869,452.23/14,885.94
  6. Step 6: Final answer
    x = 11,277.05

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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.