Home / 14,115.40-21,171.14-9,885.84

Finding the Fourth Proportional to 14,115.40, 21,171.14 and 9,885.84

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Solution

The fourth proportional to 14,115.40, 21,171.14 and 9,885.84 is: 14,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.40 : 21,171.14 = 9,885.84 : x
  2. Step 2: Convert to fraction form
    14,115.40/21,171.14 = 9,885.84/x
  3. Step 3: Cross multiply
    14,115.40x = 21,171.14 × 9,885.84
  4. Step 4: Simplify right side
    14,115.40x = 209,294,502.66
  5. Step 5: Solve for x
    x = 209,294,502.66/14,115.40
  6. Step 6: Final answer
    x = 14,827.39

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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.