Home / 9,146.77-13,719.84-3,878.39

Finding the Fourth Proportional to 9,146.77, 13,719.84 and 3,878.39

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Solution

The fourth proportional to 9,146.77, 13,719.84 and 3,878.39 is: 5,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,146.77 : 13,719.84 = 3,878.39 : x
  2. Step 2: Convert to fraction form
    9,146.77/13,719.84 = 3,878.39/x
  3. Step 3: Cross multiply
    9,146.77x = 13,719.84 × 3,878.39
  4. Step 4: Simplify right side
    9,146.77x = 53,210,802.27
  5. Step 5: Solve for x
    x = 53,210,802.27/9,146.77
  6. Step 6: Final answer
    x = 5,817.44

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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.