Home / 13,072.83-18,040.46-7,408.66

Finding the Fourth Proportional to 13,072.83, 18,040.46 and 7,408.66

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Solution

The fourth proportional to 13,072.83, 18,040.46 and 7,408.66 is: 10,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.83 : 18,040.46 = 7,408.66 : x
  2. Step 2: Convert to fraction form
    13,072.83/18,040.46 = 7,408.66/x
  3. Step 3: Cross multiply
    13,072.83x = 18,040.46 × 7,408.66
  4. Step 4: Simplify right side
    13,072.83x = 133,655,552.24
  5. Step 5: Solve for x
    x = 133,655,552.24/13,072.83
  6. Step 6: Final answer
    x = 10,223.92

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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.