Home / 10,004.45-13,788.77-7,311.26

Finding the Fourth Proportional to 10,004.45, 13,788.77 and 7,311.26

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Solution

The fourth proportional to 10,004.45, 13,788.77 and 7,311.26 is: 10,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,004.45 : 13,788.77 = 7,311.26 : x
  2. Step 2: Convert to fraction form
    10,004.45/13,788.77 = 7,311.26/x
  3. Step 3: Cross multiply
    10,004.45x = 13,788.77 × 7,311.26
  4. Step 4: Simplify right side
    10,004.45x = 100,813,280.47
  5. Step 5: Solve for x
    x = 100,813,280.47/10,004.45
  6. Step 6: Final answer
    x = 10,076.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.