Home / 19,021.04-28,505.64-9,159.60

Finding the Fourth Proportional to 19,021.04, 28,505.64 and 9,159.60

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Solution

The fourth proportional to 19,021.04, 28,505.64 and 9,159.60 is: 13,726.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.04 : 28,505.64 = 9,159.60 : x
  2. Step 2: Convert to fraction form
    19,021.04/28,505.64 = 9,159.60/x
  3. Step 3: Cross multiply
    19,021.04x = 28,505.64 × 9,159.60
  4. Step 4: Simplify right side
    19,021.04x = 261,100,260.14
  5. Step 5: Solve for x
    x = 261,100,260.14/19,021.04
  6. Step 6: Final answer
    x = 13,726.92

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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.