Home / 13,971.07-19,279.11-8,305.53

Finding the Fourth Proportional to 13,971.07, 19,279.11 and 8,305.53

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Solution

The fourth proportional to 13,971.07, 19,279.11 and 8,305.53 is: 11,461.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.07 : 19,279.11 = 8,305.53 : x
  2. Step 2: Convert to fraction form
    13,971.07/19,279.11 = 8,305.53/x
  3. Step 3: Cross multiply
    13,971.07x = 19,279.11 × 8,305.53
  4. Step 4: Simplify right side
    13,971.07x = 160,123,226.48
  5. Step 5: Solve for x
    x = 160,123,226.48/13,971.07
  6. Step 6: Final answer
    x = 11,461.06

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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.