Home / 14,227.20-19,629.60-9,191.62

Finding the Fourth Proportional to 14,227.20, 19,629.60 and 9,191.62

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Solution

The fourth proportional to 14,227.20, 19,629.60 and 9,191.62 is: 12,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,227.20 : 19,629.60 = 9,191.62 : x
  2. Step 2: Convert to fraction form
    14,227.20/19,629.60 = 9,191.62/x
  3. Step 3: Cross multiply
    14,227.20x = 19,629.60 × 9,191.62
  4. Step 4: Simplify right side
    14,227.20x = 180,427,823.95
  5. Step 5: Solve for x
    x = 180,427,823.95/14,227.20
  6. Step 6: Final answer
    x = 12,681.89

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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.