Home / 18,854.48-28,285.37-7,166.79

Finding the Fourth Proportional to 18,854.48, 28,285.37 and 7,166.79

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Solution

The fourth proportional to 18,854.48, 28,285.37 and 7,166.79 is: 10,751.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.48 : 28,285.37 = 7,166.79 : x
  2. Step 2: Convert to fraction form
    18,854.48/28,285.37 = 7,166.79/x
  3. Step 3: Cross multiply
    18,854.48x = 28,285.37 × 7,166.79
  4. Step 4: Simplify right side
    18,854.48x = 202,715,271.03
  5. Step 5: Solve for x
    x = 202,715,271.03/18,854.48
  6. Step 6: Final answer
    x = 10,751.57

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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.