Home / 14,611.20-21,916.80-9,945.60

Finding the Fourth Proportional to 14,611.20, 21,916.80 and 9,945.60

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Solution

The fourth proportional to 14,611.20, 21,916.80 and 9,945.60 is: 14,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.20 : 21,916.80 = 9,945.60 : x
  2. Step 2: Convert to fraction form
    14,611.20/21,916.80 = 9,945.60/x
  3. Step 3: Cross multiply
    14,611.20x = 21,916.80 × 9,945.60
  4. Step 4: Simplify right side
    14,611.20x = 217,975,726.08
  5. Step 5: Solve for x
    x = 217,975,726.08/14,611.20
  6. Step 6: Final answer
    x = 14,918.40

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Similar ratio
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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.