Home / 18,857.08-28,285.64-5,709.44

Finding the Fourth Proportional to 18,857.08, 28,285.64 and 5,709.44

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Solution

The fourth proportional to 18,857.08, 28,285.64 and 5,709.44 is: 8,564.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.08 : 28,285.64 = 5,709.44 : x
  2. Step 2: Convert to fraction form
    18,857.08/28,285.64 = 5,709.44/x
  3. Step 3: Cross multiply
    18,857.08x = 28,285.64 × 5,709.44
  4. Step 4: Simplify right side
    18,857.08x = 161,495,164.44
  5. Step 5: Solve for x
    x = 161,495,164.44/18,857.08
  6. Step 6: Final answer
    x = 8,564.17

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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.