Home / 14,505.60-20,016.96-8,916.72

Finding the Fourth Proportional to 14,505.60, 20,016.96 and 8,916.72

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Solution

The fourth proportional to 14,505.60, 20,016.96 and 8,916.72 is: 12,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.60 : 20,016.96 = 8,916.72 : x
  2. Step 2: Convert to fraction form
    14,505.60/20,016.96 = 8,916.72/x
  3. Step 3: Cross multiply
    14,505.60x = 20,016.96 × 8,916.72
  4. Step 4: Simplify right side
    14,505.60x = 178,485,627.57
  5. Step 5: Solve for x
    x = 178,485,627.57/14,505.60
  6. Step 6: Final answer
    x = 12,304.60

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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.