Home / 18,842.57-28,263.83-7,155.77

Finding the Fourth Proportional to 18,842.57, 28,263.83 and 7,155.77

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Solution

The fourth proportional to 18,842.57, 28,263.83 and 7,155.77 is: 10,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,842.57 : 28,263.83 = 7,155.77 : x
  2. Step 2: Convert to fraction form
    18,842.57/28,263.83 = 7,155.77/x
  3. Step 3: Cross multiply
    18,842.57x = 28,263.83 × 7,155.77
  4. Step 4: Simplify right side
    18,842.57x = 202,249,431.02
  5. Step 5: Solve for x
    x = 202,249,431.02/18,842.57
  6. Step 6: Final answer
    x = 10,733.64

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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.