Home / 13,081.76-19,622.20-5,686.22

Finding the Fourth Proportional to 13,081.76, 19,622.20 and 5,686.22

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Solution

The fourth proportional to 13,081.76, 19,622.20 and 5,686.22 is: 8,529.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.76 : 19,622.20 = 5,686.22 : x
  2. Step 2: Convert to fraction form
    13,081.76/19,622.20 = 5,686.22/x
  3. Step 3: Cross multiply
    13,081.76x = 19,622.20 × 5,686.22
  4. Step 4: Simplify right side
    13,081.76x = 111,576,146.08
  5. Step 5: Solve for x
    x = 111,576,146.08/13,081.76
  6. Step 6: Final answer
    x = 8,529.14

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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.