Home / 10,603.33-15,874.75-8,415.25

Finding the Fourth Proportional to 10,603.33, 15,874.75 and 8,415.25

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Solution

The fourth proportional to 10,603.33, 15,874.75 and 8,415.25 is: 12,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.33 : 15,874.75 = 8,415.25 : x
  2. Step 2: Convert to fraction form
    10,603.33/15,874.75 = 8,415.25/x
  3. Step 3: Cross multiply
    10,603.33x = 15,874.75 × 8,415.25
  4. Step 4: Simplify right side
    10,603.33x = 133,589,989.94
  5. Step 5: Solve for x
    x = 133,589,989.94/10,603.33
  6. Step 6: Final answer
    x = 12,598.87

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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.