Home / 19,171.28-28,759.76-9,816.58

Finding the Fourth Proportional to 19,171.28, 28,759.76 and 9,816.58

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Solution

The fourth proportional to 19,171.28, 28,759.76 and 9,816.58 is: 14,726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.28 : 28,759.76 = 9,816.58 : x
  2. Step 2: Convert to fraction form
    19,171.28/28,759.76 = 9,816.58/x
  3. Step 3: Cross multiply
    19,171.28x = 28,759.76 × 9,816.58
  4. Step 4: Simplify right side
    19,171.28x = 282,322,484.82
  5. Step 5: Solve for x
    x = 282,322,484.82/19,171.28
  6. Step 6: Final answer
    x = 14,726.32

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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.