Home / 19,155.18-28,693.59-9,286.35

Finding the Fourth Proportional to 19,155.18, 28,693.59 and 9,286.35

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Solution

The fourth proportional to 19,155.18, 28,693.59 and 9,286.35 is: 13,910.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.18 : 28,693.59 = 9,286.35 : x
  2. Step 2: Convert to fraction form
    19,155.18/28,693.59 = 9,286.35/x
  3. Step 3: Cross multiply
    19,155.18x = 28,693.59 × 9,286.35
  4. Step 4: Simplify right side
    19,155.18x = 266,458,629.31
  5. Step 5: Solve for x
    x = 266,458,629.31/19,155.18
  6. Step 6: Final answer
    x = 13,910.52

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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.