Home / 18,754.28-28,126.50-5,603.54

Finding the Fourth Proportional to 18,754.28, 28,126.50 and 5,603.54

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Solution

The fourth proportional to 18,754.28, 28,126.50 and 5,603.54 is: 8,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.28 : 28,126.50 = 5,603.54 : x
  2. Step 2: Convert to fraction form
    18,754.28/28,126.50 = 5,603.54/x
  3. Step 3: Cross multiply
    18,754.28x = 28,126.50 × 5,603.54
  4. Step 4: Simplify right side
    18,754.28x = 157,607,967.81
  5. Step 5: Solve for x
    x = 157,607,967.81/18,754.28
  6. Step 6: Final answer
    x = 8,403.84

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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.