Home / 13,181.30-19,754.67-5,381.18

Finding the Fourth Proportional to 13,181.30, 19,754.67 and 5,381.18

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Solution

The fourth proportional to 13,181.30, 19,754.67 and 5,381.18 is: 8,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.30 : 19,754.67 = 5,381.18 : x
  2. Step 2: Convert to fraction form
    13,181.30/19,754.67 = 5,381.18/x
  3. Step 3: Cross multiply
    13,181.30x = 19,754.67 × 5,381.18
  4. Step 4: Simplify right side
    13,181.30x = 106,303,435.11
  5. Step 5: Solve for x
    x = 106,303,435.11/13,181.30
  6. Step 6: Final answer
    x = 8,064.72

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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.