Home / 13,327.05-19,960.51-7,772.07

Finding the Fourth Proportional to 13,327.05, 19,960.51 and 7,772.07

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Solution

The fourth proportional to 13,327.05, 19,960.51 and 7,772.07 is: 11,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.05 : 19,960.51 = 7,772.07 : x
  2. Step 2: Convert to fraction form
    13,327.05/19,960.51 = 7,772.07/x
  3. Step 3: Cross multiply
    13,327.05x = 19,960.51 × 7,772.07
  4. Step 4: Simplify right side
    13,327.05x = 155,134,480.96
  5. Step 5: Solve for x
    x = 155,134,480.96/13,327.05
  6. Step 6: Final answer
    x = 11,640.57

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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.