Home / 8,918.46-12,307.41-5,383.62

Finding the Fourth Proportional to 8,918.46, 12,307.41 and 5,383.62

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Solution

The fourth proportional to 8,918.46, 12,307.41 and 5,383.62 is: 7,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.46 : 12,307.41 = 5,383.62 : x
  2. Step 2: Convert to fraction form
    8,918.46/12,307.41 = 5,383.62/x
  3. Step 3: Cross multiply
    8,918.46x = 12,307.41 × 5,383.62
  4. Step 4: Simplify right side
    8,918.46x = 66,258,418.62
  5. Step 5: Solve for x
    x = 66,258,418.62/8,918.46
  6. Step 6: Final answer
    x = 7,429.36

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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.