Home / 19,171.15-28,759.56-9,816.46

Finding the Fourth Proportional to 19,171.15, 28,759.56 and 9,816.46

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Solution

The fourth proportional to 19,171.15, 28,759.56 and 9,816.46 is: 14,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.15 : 28,759.56 = 9,816.46 : x
  2. Step 2: Convert to fraction form
    19,171.15/28,759.56 = 9,816.46/x
  3. Step 3: Cross multiply
    19,171.15x = 28,759.56 × 9,816.46
  4. Step 4: Simplify right side
    19,171.15x = 282,317,070.36
  5. Step 5: Solve for x
    x = 282,317,070.36/19,171.15
  6. Step 6: Final answer
    x = 14,726.14

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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.