Home / 9,146.32-13,721.39-5,199.39

Finding the Fourth Proportional to 9,146.32, 13,721.39 and 5,199.39

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Solution

The fourth proportional to 9,146.32, 13,721.39 and 5,199.39 is: 7,800.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,146.32 : 13,721.39 = 5,199.39 : x
  2. Step 2: Convert to fraction form
    9,146.32/13,721.39 = 5,199.39/x
  3. Step 3: Cross multiply
    9,146.32x = 13,721.39 × 5,199.39
  4. Step 4: Simplify right side
    9,146.32x = 71,342,851.45
  5. Step 5: Solve for x
    x = 71,342,851.45/9,146.32
  6. Step 6: Final answer
    x = 7,800.17

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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.