Home / 11,131.70-15,361.73-6,417.50

Finding the Fourth Proportional to 11,131.70, 15,361.73 and 6,417.50

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Solution

The fourth proportional to 11,131.70, 15,361.73 and 6,417.50 is: 8,856.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.70 : 15,361.73 = 6,417.50 : x
  2. Step 2: Convert to fraction form
    11,131.70/15,361.73 = 6,417.50/x
  3. Step 3: Cross multiply
    11,131.70x = 15,361.73 × 6,417.50
  4. Step 4: Simplify right side
    11,131.70x = 98,583,793.38
  5. Step 5: Solve for x
    x = 98,583,793.38/11,131.70
  6. Step 6: Final answer
    x = 8,856.13

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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.