Home / 10,401.45-15,617.97-9,084.39

Finding the Fourth Proportional to 10,401.45, 15,617.97 and 9,084.39

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Solution

The fourth proportional to 10,401.45, 15,617.97 and 9,084.39 is: 13,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,401.45 : 15,617.97 = 9,084.39 : x
  2. Step 2: Convert to fraction form
    10,401.45/15,617.97 = 9,084.39/x
  3. Step 3: Cross multiply
    10,401.45x = 15,617.97 × 9,084.39
  4. Step 4: Simplify right side
    10,401.45x = 141,879,730.49
  5. Step 5: Solve for x
    x = 141,879,730.49/10,401.45
  6. Step 6: Final answer
    x = 13,640.38

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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.