Home / 18,901.05-28,346.49-5,749.89

Finding the Fourth Proportional to 18,901.05, 28,346.49 and 5,749.89

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Solution

The fourth proportional to 18,901.05, 28,346.49 and 5,749.89 is: 8,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.05 : 28,346.49 = 5,749.89 : x
  2. Step 2: Convert to fraction form
    18,901.05/28,346.49 = 5,749.89/x
  3. Step 3: Cross multiply
    18,901.05x = 28,346.49 × 5,749.89
  4. Step 4: Simplify right side
    18,901.05x = 162,989,199.39
  5. Step 5: Solve for x
    x = 162,989,199.39/18,901.05
  6. Step 6: Final answer
    x = 8,623.29

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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.