Home / 13,982.17-19,296.03-8,678.71

Finding the Fourth Proportional to 13,982.17, 19,296.03 and 8,678.71

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Solution

The fourth proportional to 13,982.17, 19,296.03 and 8,678.71 is: 11,977.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.17 : 19,296.03 = 8,678.71 : x
  2. Step 2: Convert to fraction form
    13,982.17/19,296.03 = 8,678.71/x
  3. Step 3: Cross multiply
    13,982.17x = 19,296.03 × 8,678.71
  4. Step 4: Simplify right side
    13,982.17x = 167,464,648.52
  5. Step 5: Solve for x
    x = 167,464,648.52/13,982.17
  6. Step 6: Final answer
    x = 11,977.01

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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.