Home / 13,989.03-19,302.87-8,020.95

Finding the Fourth Proportional to 13,989.03, 19,302.87 and 8,020.95

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Solution

The fourth proportional to 13,989.03, 19,302.87 and 8,020.95 is: 11,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.03 : 19,302.87 = 8,020.95 : x
  2. Step 2: Convert to fraction form
    13,989.03/19,302.87 = 8,020.95/x
  3. Step 3: Cross multiply
    13,989.03x = 19,302.87 × 8,020.95
  4. Step 4: Simplify right side
    13,989.03x = 154,827,355.13
  5. Step 5: Solve for x
    x = 154,827,355.13/13,989.03
  6. Step 6: Final answer
    x = 11,067.77

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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.