Home / 13,991.03-19,307.39-8,022.35

Finding the Fourth Proportional to 13,991.03, 19,307.39 and 8,022.35

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Solution

The fourth proportional to 13,991.03, 19,307.39 and 8,022.35 is: 11,070.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.03 : 19,307.39 = 8,022.35 : x
  2. Step 2: Convert to fraction form
    13,991.03/19,307.39 = 8,022.35/x
  3. Step 3: Cross multiply
    13,991.03x = 19,307.39 × 8,022.35
  4. Step 4: Simplify right side
    13,991.03x = 154,890,640.17
  5. Step 5: Solve for x
    x = 154,890,640.17/13,991.03
  6. Step 6: Final answer
    x = 11,070.71

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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.