Home / 19,559.20-29,305.20-9,149.60

Finding the Fourth Proportional to 19,559.20, 29,305.20 and 9,149.60

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Solution

The fourth proportional to 19,559.20, 29,305.20 and 9,149.60 is: 13,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.20 : 29,305.20 = 9,149.60 : x
  2. Step 2: Convert to fraction form
    19,559.20/29,305.20 = 9,149.60/x
  3. Step 3: Cross multiply
    19,559.20x = 29,305.20 × 9,149.60
  4. Step 4: Simplify right side
    19,559.20x = 268,130,857.92
  5. Step 5: Solve for x
    x = 268,130,857.92/19,559.20
  6. Step 6: Final answer
    x = 13,708.68

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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.