Home / 14,217.60-19,620.24-7,930.16

Finding the Fourth Proportional to 14,217.60, 19,620.24 and 7,930.16

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Solution

The fourth proportional to 14,217.60, 19,620.24 and 7,930.16 is: 10,943.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.60 : 19,620.24 = 7,930.16 : x
  2. Step 2: Convert to fraction form
    14,217.60/19,620.24 = 7,930.16/x
  3. Step 3: Cross multiply
    14,217.60x = 19,620.24 × 7,930.16
  4. Step 4: Simplify right side
    14,217.60x = 155,591,642.44
  5. Step 5: Solve for x
    x = 155,591,642.44/14,217.60
  6. Step 6: Final answer
    x = 10,943.59

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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.