Home / 15,408.45-21,263.67-8,334.90

Finding the Fourth Proportional to 15,408.45, 21,263.67 and 8,334.90

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Solution

The fourth proportional to 15,408.45, 21,263.67 and 8,334.90 is: 11,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.45 : 21,263.67 = 8,334.90 : x
  2. Step 2: Convert to fraction form
    15,408.45/21,263.67 = 8,334.90/x
  3. Step 3: Cross multiply
    15,408.45x = 21,263.67 × 8,334.90
  4. Step 4: Simplify right side
    15,408.45x = 177,230,563.08
  5. Step 5: Solve for x
    x = 177,230,563.08/15,408.45
  6. Step 6: Final answer
    x = 11,502.17

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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.