Home / 14,979.76-20,672.16-8,265.60

Finding the Fourth Proportional to 14,979.76, 20,672.16 and 8,265.60

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Solution

The fourth proportional to 14,979.76, 20,672.16 and 8,265.60 is: 11,406.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.76 : 20,672.16 = 8,265.60 : x
  2. Step 2: Convert to fraction form
    14,979.76/20,672.16 = 8,265.60/x
  3. Step 3: Cross multiply
    14,979.76x = 20,672.16 × 8,265.60
  4. Step 4: Simplify right side
    14,979.76x = 170,867,805.70
  5. Step 5: Solve for x
    x = 170,867,805.70/14,979.76
  6. Step 6: Final answer
    x = 11,406.58

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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.