Home / 18,840.36-28,283.58-8,854.68

Finding the Fourth Proportional to 18,840.36, 28,283.58 and 8,854.68

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Solution

The fourth proportional to 18,840.36, 28,283.58 and 8,854.68 is: 13,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.36 : 28,283.58 = 8,854.68 : x
  2. Step 2: Convert to fraction form
    18,840.36/28,283.58 = 8,854.68/x
  3. Step 3: Cross multiply
    18,840.36x = 28,283.58 × 8,854.68
  4. Step 4: Simplify right side
    18,840.36x = 250,442,050.15
  5. Step 5: Solve for x
    x = 250,442,050.15/18,840.36
  6. Step 6: Final answer
    x = 13,292.85

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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.