Home / 11,140.71-15,373.50-6,361.21

Finding the Fourth Proportional to 11,140.71, 15,373.50 and 6,361.21

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Solution

The fourth proportional to 11,140.71, 15,373.50 and 6,361.21 is: 8,778.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.71 : 15,373.50 = 6,361.21 : x
  2. Step 2: Convert to fraction form
    11,140.71/15,373.50 = 6,361.21/x
  3. Step 3: Cross multiply
    11,140.71x = 15,373.50 × 6,361.21
  4. Step 4: Simplify right side
    11,140.71x = 97,794,061.94
  5. Step 5: Solve for x
    x = 97,794,061.94/11,140.71
  6. Step 6: Final answer
    x = 8,778.08

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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.